Muir Glacier Pair

Image Credit: National Snow and Ice Data Center, W. O. Field, B. F. Molnia

Muir Glacier 1941 to 2004
Muir Glacier in 1941 and again in 2004

Click on the image to go to the story at the National Snow and Ice Data Center.

On the left is a photograph of Muir Glacier taken on August 13, 1941, by glaciologist William O. Field; on the right, a photograph taken from the same vantage on August 31, 2004, by geologist Bruce F. Molnia of the United States Geological Survey (USGS).

Climate: CO2 decline linked with ice cap formation

Posted on December 2, 2011 by Bob Berwyn

Ancient algae remnants offer climate clues

Studying remnants of ancient algae from seabed cores has helped scientists from Purdue and Yale universities pinpoint a link between a drastic drop in atmospheric carbon dioxide levels and formation of the Antarctic ice sheet. Based on their research, the scientists said declining […]

Global warming: Multiplier effect seen in coastal ecosystems

Posted on December 1, 2011 by Bob Berwyn

Drastic shellfish loss measured along Vancouver coast

Global warming is altering the composition of tide pools along the coast of Vancouver Island, with consequences that go far beyond impacts to single species. Daily high temperatures during the summer months have increased by almost 3.5 degrees Celsius in the last […]

Climate: Large scale carbon-capture tried in Illinois

Posted on November 28, 2011 by Bob Berwyn

Ethanol byproducts to be pumped deep into a sandstone formation

Carbon dioxide byproducts from an Archer Daniels Midland Company ethanol plant will be injected 7,000 feet deep into an Illinois sandstone formation in the first million-ton carbon sequestration demonstration in the U.S. Although geo-engineering is not without controversy, top […]

Global warming: Propaganda creates myth of disagreement

Posted on November 26, 2011 by Bob Berwyn

Scientists nearly unanimous on climate change; public not getting the message

A long-running propaganda campaign to cast doubt on climate science has apparently worked to some degree. On the one hand, there is near unanimous agreement among climate scientists that human-caused global […]

Global warming: Runaway temperature increase unlikely

Posted on November 25, 2011 by Bob Berwyn

Paleoclimate data suggest some constraints to warming trend

By reconstructing global temperatures during the peak of the last ice age, a team of researchers say they’ve narrowed down the window of climate sensitivity, helping to quantify how much temperatures will increase as carbon dioxide levels rise. The results suggest […]

Climate: Arctic sea-ice extent lags below average

Posted on November 23, 2011 by Bob Berwyn

Despite rapid October growth, ice remains near record-low levels

Arctic sea ice grew about 40 percent faster than average in October, but after an extensive summer melt-off, large areas of open water remained in the Beaufort and Chukchi seas, leading to unusually warm conditions along parts of the Siberian […]

Global warming: Gulf of Maine salmon dwindling

Posted on November 22, 2011 by Bob Berwyn

Increased sea-surface temperatures, shifting wind patterns and increased predation cited as factors in falling populations

Salmon spawning in the rivers of Maine — the last strongholds for Atlantic salmon in New England — are facing new climate-related challenges. Changing spring wind patterns, warming sea surface temperatures and new predators […]

Global warming: Signal versus noise

Posted on November 19, 2011 by Bob Berwyn

“Looking at a single, noisy 10-year period is cherry picking.” ~Benjamin Santer

Scientists with Lawrence Livermore National Laboratory directly addressed the issue of data cherry picking in a recent paper, suggesting that it takes at  least 17 years worth of temperature records to separate human-caused global warming from the […]

Global warming: October 2011 the 10th-warmest on record

Posted on November 16, 2011 by Bob Berwyn

Northern hemisphere snow cover, Arctic sea ice extent well below average for the month

Planet Earth stayed warm in October, with combined average land and ocean-surface temperatures coming in at 1.04 degrees above the 20th century average, a reading that made it the 10th-warmest October on record […]

Global warming: Tundra fires a big factor in carbon cycle

Posted on November 15, 2011 by Bob Berwyn

Human disturbance or climate-induce drying could change peatlands from huge carbon sinks into carbon sources

Larger and more intense fires in dried-up peatlands can release centuries worth of stored carbon in a single surge of flame and smoke. As northern wetlands dry up under the influence of climate change, […]

Environment: Air pollution altering weather patterns

Posted on November 14, 2011 by Bob Berwyn

Aerosols affect cloud formation, height and thickness; changing precipitation frequency and intensity

Shortly after another recent study found that pollution may be intensifying hurricanes in the Arabian Gulf, University of Maryland scientists said increases in air pollution can intensify droughts and precipitation. The research provides the first clear evidence […]

Global warming causes growth spurt in some Arctic forests

Posted on November 14, 2011 by Bob Berwyn

Tree-ring width and density increased dramatically about 100 years ago

Forests at the edge of Alaska’s tundra have put on a growth spurt in the past hundred years, and especially since about 1950, according to researchers with Columbia University’s LaMont-Doherty Earth Observatory. The scientists  recently completed a detailed tree-ring […]

Global warming: IPCC set to release report on managing risks of extreme weather events related to climate change

Posted on November 13, 2011 by Bob Berwyn

International efforts represent recognition that climate change is increasing the risk for extreme weather events

Extreme weather events during the past year has spurred increasing discussions about a possible link between global climate change tornado outbreaks and flooding, for example. Most climate researchers  agree that climate doesn’t directly cause […]

Quantifying health-care costs of climate change

Posted on November 10, 2011 by Bob Berwyn

Six recent climate-related disasters cost at least $14 billion

Researchers with Columbia University’s Mailman School of Public Health said they’ve been able to start tracking health impacts stemming from six climate change-related events in the United States during the last decade. The costs are estimated at $14 billion dollars, including 21,000 […]

Greenhouse gas index tracks steady climb in heating effect

Posted on November 10, 2011 by Bob Berwyn

Concentration of potent methane shows steep increase

The combined heating effect of long-lived greenhouse gases in the atmosphere has increased by 29 percent since 1990, according to the National Oceanic and Atmospheric Administration’s annual green house gas index, which measures the direct climate influence of many greenhouse gases such […]

Weird weather: Alaska gets hit by superstorm, parts of Mediterranean experience tropical storm conditions

Posted on November 9, 2011 by Bob Berwyn

Is it climate change or coincidence?

A winter storm with hurricane-force winds slammed into the west coast of Alaska today, bringing blizzard warnings to much of the region, along with a storm surge of up to 6 feet along parts of the coast. At the same time, an unusual […]

Environment: UN renews call for ocean protection

Posted on November 9, 2011 by Bob Berwyn

A trail of broken promises on ocean conservation …

In preparation for the 2012 conference on sustainable development in Rio, several UN organizations last week released a new report that sounds the alarm about the health of  oceans and explains how it influences our everyday life by regulating […]

Climate: October temps above average again

Posted on November 9, 2011 by Bob Berwyn

Early season snowstorms aren’t a sign of global-warming slowdown

Despite a record-setting Nor’easter — and to the likely frustration of cherry-picking global warming skeptics, who claim that global warming has stopped — October was another warm month across the United States, with the average at 0.9 degrees above the […]

Pollution may be fueling unusual desert cyclones

Posted on November 5, 2011 by Bob Berwyn

Buildup of aerosols weakens upper-level winds that normally shear tropical storms

A buildup of atmospheric pollutants may be contributing to the intensification of tropical cyclones in the Arabian Sea, said a group of researchers who documented a shift in upper-air wind patterns over the region. The scientists linked those […]

Global warming: Forests not adapting as predicted

Posted on November 1, 2011 by Bob Berwyn

Study shows no northward migration as warm zones expand northward

Trees in the eastern U.S. are not adapting to global warming as quickly as expected, according to a team of Duke University scientists who looked at scores of species to try learn how they’re adapting to a changing climate. […]

Climate: Preparing for mass migration a ‘moral imperative’

Posted on October 30, 2011 by Bob Berwyn

Global warming likely to displace millions of people, but most governments are unprepared to manage flow of climate refugees

A temperature increase of just a few degrees by the end of the century could displace millions of people from their homes, but many governments are not close to being […]

Global warming: Researchers find extreme melting of Greenland ice cap even without record temperatures

Posted on October 30, 2011 by Bob Berwyn

Feedback loop reinforces rapid ice loss

Temperatures don’t have to reach record highs to fuel extreme melting of the Greeland ice cap, according to new research suggesting that glaciers could undergo a self-amplifying cycle of melting and warming that would be difficult to halt. “We are finding that even if […]

Global warming: New NOAA study suggests winter droughts may become the ‘new normal’ in the Mediterranean region

Posted on October 29, 2011 by Bob Berwyn

Warming sea surface temperatures linked with drought cycles

The Mediterranean has long been identified as an area that will feel global warming impacts because of water scarcity in the region, a rapidly increasing population, and climate modeling that projects increased risk of drought. And now, a new NOAA study […]

Climate: Sand dunes on the move in Navajo Nation

Posted on October 24, 2011 by Bob Berwyn

Extended drought causing landscape-level changes in Southwest

With a persistent drought gripping parts of the Southwest since 1996, researchers have documented noticeable changes in the sand dunes where Navajos have eked out an austere living for generations. The dunes are growing fast and starting to move as the regional […]

Climate: Global scale of current warming is unpredecented

Posted on October 22, 2011 by Bob Berwyn

‘What is happening today is unique from a historical geological perspective’

Simultaneous warming in the southern and northern hemispheres hasn’t occurred in at least 20,000 years, and possibly longer, according to a Swedish researcher who says his findings refute one of the more common arguments against global warming. “What […]

Global warming: Does albedo offset CO2?

Posted on October 20, 2011 by Bob Berwyn

New research may help fine-tune climate models

Scientists at Oregon State University say that, based on a recent study, some climate models need to revised to include changes in albedo resulting from large-scale forest disturbances. Albedo is a measure of radiation reflected by a surface — in this case […]

Global warming: Arctic sea ice getting thinner

Posted on October 9, 2011 by Bob Berwyn

Research voyage yields solid  data on Arctic sea ice loss

Old, thick sea ice that helps sustain a long-term ice cover in the Arctic is disappearing, according to researchers with the Alfred Wegener Institute who recently sailed more than 12,000 miles through Arctic seas aboard the Polarstern to investigate […]

Environment: U.S. wetlands at a ‘tipping point’

Posted on October 9, 2011 by Bob Berwyn

Forested and coastal wetlands declining the most

The latest comprehensive national wetlands survey showed a net loss of 82,300 acres between 2004 and 2009, and even though the rate of wetlands losses slowed, Interior Secretary Ken Salazar said the trend is alarming, especially for places like the Mississippi River Delta. […]

Environment: Unprecendented ozone loss above Arctic

Posted on October 4, 2011 by Bob Berwyn

Stratospheric cold snap led to depletion of protective gas last winter

An unusually long-lasting cold snap in the stratosphere above the Arctic last winter caused an unprecedented depletion of the Earth’s protective ozone layer, according to the results of NASA-led study published Oct. 2 in Nature. The researchers found […]

Can forests offset some climate change impacts?

Posted on October 1, 2011 by Bob Berwyn

Forest Service researchers document trend toward more extreme weather

U.S. Forest Service researchers in western North Carolina said they’re seen a shift toward more extreme precipitation patterns since the 1980s. “We found significant increases in temperature and in the frequency of extreme wet and dry years since the 1980s,” […]

Biodiversity: New research confirms global shark declines

Posted on September 30, 2011 by Bob Berwyn

Study: ‘Widespread, substantial, and ongoing declines in the abundance of shark populations worldwide …’

Australian researchers say they’ve developed a new way of accurately measuring shark populations, and the results show the ocean predators are in big trouble on the Great Barrier Reef and around the world. “There is […]

Global warming: New IG report nitpicks EPA’s greenhouse gas endangerment finding purely for procedural reasons

Posted on September 29, 2011 by Bob Berwyn

Review only covered procedures and does not question the underlying science used to make the finding

A new Inspector General report on the EPA’s greenhouse gas endangerment finding is sure to add fire to the political flames surrounding the agency’s authority to regulate greenhouse gases like carbon dioxide and […]

Global warming: Europeans see serious coastal threats

Posted on September 27, 2011 by Bob Berwyn

86 percent of surveyed coastal residents believe climate change is human-caused

Europeans living in coastal areas support government policies to protect marine environments from climate-change impacts and named climate-related issues like coastal erosion and sea-level rise as recognizable threats. The findings came from an extensive survey on environmental issues. […]

Sea bass fisheries collapsing in Southern California

Posted on September 27, 2011 by Bob Berwyn

Over-fishing, changing ocean temps blamed for plummeting numbers as Scripps researchers unveil ‘illusion of plenty

Over-fishing and climate-driven changes in water temperature have combined to cause the collapse of two important recreational fisheries off the southern California coast in the past few decades. Barred sand bass and kelp bass […]

Does climate change drive human evolution?

Posted on September 26, 2011 by Bob Berwyn

Widespread use of stone tools appears to be tied with a period of rapid climate fluctuations

British researchers have linked historic periods of climate instability with key events in the timeline of human evolution, finding that periods of rapid fluctuation in temperature coincided with the emergence of the first […]

Global warming: Day of Action under way

Posted on September 24, 2011 by Bob Berwyn

Moving the planet …

Despite efforts by fossil fuel industries and their powerful political allies to obfuscate, suppress, hide and otherwise deny the fact that greenhouse gases are heating the planet at an unsustainable pace, global awareness of the issue is growing. And awareness is leading to action, as […]

Global warming: ‘Missing’ heat found deep in the ocean

Posted on September 19, 2011 by Bob Berwyn

New study explains why global surface temperatures don’t rise in a straight line By Summit Voice SUMMIT COUNTY — Changes in ocean currents and circulation are capturing some of the sun’s incoming heat deep in the ocean, according to researchers with the National Center for Atmospheric Research, who said their latest computer models account for […]

Atlantic fish populations shifting as seas warm

Posted on September 17, 2011 by Bob Berwyn

Cold-loving species declining in northeast Atlantic, while other fish appear to be thriving

With temperatures in the northeast Atlantic Ocean rising four times faster than most other ocean regions, researchers are documenting major shifts in the abundance of commercially important fish stocks. Catches of cold-loving species, including haddock and […]

Investigation of arctic scientist going nowhere

Posted on September 16, 2011 by Bob Berwyn

Is. Dr. Charles Monnett being muzzled for his work on global warming and polar bears?

Federal investigators continue to claim they are investigating an Arctic scientist for his role in administering research contracts, but documents released by a watchdog and whistle-blower protection group this week suggest the investigation is […]

Global warming: Water-borne diseases on the rise

Posted on September 15, 2011 by Bob Berwyn

Europe facing significant health and economic impacts

Global warming is likely to increase health-related expenses in Europe by millions of dollars, as disease caused by contaminated seafood and ingestion of water-borne pathogens becomes more common. The findings were part of a far-reaching study that looked at the results of […]

Sea level rise to be costly for California

Posted on September 14, 2011 by Bob Berwyn

New study pinpoints economic impacts to beach communities

Shrinking beaches could cost California communities more than $1 billion as sea levels rise, according to a team of San Francisco State University researchers. The study tried to pinpoint economic impacts in five seaside communities: Ocean Beach in San Francisco; Venice […]

Riders, skiers seek political action on global warming

Posted on September 13, 2011 by Bob Berwyn

Top athletes set to spotlight potential climate-change impacts to winter sports communities and industries

After a powder-filled La Niña season, it might be hard to come to grips with the fact that winters just aren’t what they used to be — but that’s exactly what a recent study from […]

Climate: NOAA issues La Niña advisory

Posted on September 12, 2011 by Bob Berwyn

Drought may continue across south-central U.S.

It’s official — La Niña is back, according to the National Oceanic and Atmospheric Administration’s Climate Prediction Center, which last week upgraded its La Niña watch to a La Niña advisory. “This means drought is likely to continue in the drought-stricken states of […]

New evidence from fossilized reefs suggest large sea-level changes during interglacial warm period, 120,000 years ago

Posted on September 12, 2011 by Bob Berwyn

Findings will help model future sea-level changes

New evidence gathered from coral reef fossils suggests that sea levels fluctuated by 13 to 20 feet within the span of just a few thousands of years during a warm interglacial period known as the Eemian Age, about 125,000 years ago.  […]

Global warming: Arctic sea ice decline continues in August

Posted on September 11, 2011 by Bob Berwyn

Northwest passage open for shipping

The August sea ice extent in the Arctic reached the second lowest level for the month and tracked near record low levels for much of the summer. The latests readings underscore the continued decline in Arctic ice cover, according to the monthly update from […]

Global warming: Will ‘extreme’ summers become the norm?

Posted on September 10, 2011 by Bob Berwyn

New study suggests that 70 to 80 percent of the Earth’s land surface will see summer temps that exceed historical extremes

Even if efforts to cap average global temperature increases at 3.5 degrees are realized, about 70 to 80 percent of the Earth’s land surface could experience summer temperatures […]

A switch to natural gas may not slow global warming

Posted on September 9, 2011 by Bob Berwyn

Methane leaks a wild card in energy and climate change equation

A new study from a senior researcher at the National Center for Atmospheric Research challenges the conventional wisdom that shifting from coal to natural gas would help slow the rate of global warming. The findings suggest that a […]

Aug. 2011: Second-warmest on record for U.S.

Posted on September 8, 2011 by Bob Berwyn

5 states, including Colorado, report warmest August on record

Average August temperatures across the U.S. soared to 75.7 degrees, a full 3 degrees above the long-term average (1901-2000) resulting in the second-warmest August on record for the country, the National Climatic Data Center reported today in its monthly State […]

El Niño beach erosion previews global warming impacts

Posted on September 7, 2011 by Bob Berwyn

USGS finds 2009 – 2010 storms caused unprecedented coastal erosion

Winter shoreline erosion at San Francisco’s Ocean Beach of more than 180 feet during the El Niño storms of 2009 – 2010 may be a harbinger of future climate change impacts, geologists said after an extensive West Coast assessment […]

Study: Clouds do not cause climate change

Posted on September 7, 2011 by Bob Berwyn

New paper sure to fuel what some are now calling the climate wars

A new paper published this week in Geophysical Research Letters rebuts recent claims that clouds are the root cause of climate change. Based on a 10-year study of El Niño and La Niña cycles, Texas A&M […]

Dust in the Southern Ocean may drive climate changes

Posted on September 4, 2011 by Bob Berwyn

Cycle of dust, phytoplankton and climate change studied

A study of dust deposition in the Southern Ocean going back 4 million years  shows a close link between high levels of dust in the Antarctic Ocean and  low concentrations of CO2 in the atmosphere, which, in turn, are linked with […]

Global warming: Journal editor resigns over flawed paper

Posted on September 4, 2011 by Bob Berwyn

Opinion — The debate over a flawed paper serves global warming skeptics well since it creates the illusion of an overall climate science debate

The latest flap over climate science — and specifically about human-caused global warming — shows once again how ideological and political this issue has become, […]

Global warming: California salmon under the gun

Posted on September 2, 2011 by Bob Berwyn

Warmer stream temps could force resource managers to choose between fish and hydropower

Global warming may soon force resource managers in California to choose between maintaining salmon populations or producing hydropower. That’s because warming streams could spell the end of spring-run Chinook salmon in California by the end of […]

WikiLeaks: Avalanches & global warming in Austria

Posted on August 31, 2011 by Bob Berwyn

U.S. government delves into Austrian disaster readiness

Americans traveling in Austria’s Tyrol province can rest assured that they are in good hands in case of a natural disaster or in the face of other emergency hazards, according to a cable from the U.S. embassy released by WikiLeaks recently. According […]

Climate: Does El Niño drive warfare?

Posted on August 27, 2011 by Bob Berwyn

Columbia University study suggests link between climate cycles and armed conflict

By taking a long-term look at the history of El Niño-La Niña cycles and matching them with the number of conflicts that occur in tropical countries around the globe, a team of researches with the Earth Institute at […]

Environment: Arctic researcher Dr. Charles Monnett back at work after feds lift suspension, but investigation continues

Posted on August 26, 2011 by Bob Berwyn

Scientist still under cloud, as watchdog group launches counter-investigation of federal agency

Dr. Charles Monnett, a federal researcher who was suspended in mid-July and investigated for his handling of scientific contracts is back at work today — but the investigation continues, according to Melissa Schwartz, the deputy chief of […]

Global warming: IG report debunks ‘Climategate’ myths

Posted on August 24, 2011 by Bob Berwyn

Penn State researcher cleared of research manipulation

A Penn State meteorologist who was the favorite whipping boy for global warming deniers has been exonerated — again — this time by the National Science Foundation Inspector General’s office, which concluded that there is no evidence that Michael Mann was guilty […]

Global warming: Glacier meltdown in Greenland

Posted on August 21, 2011 by Bob Berwyn

Record ice losses recorded the last two years

Warmer temperatures around Greenland’s Mittivakkat Glacier since 1995 have caused the ice to melt faster than expected, according to a team of researchers led by Dr. Edward Hanna, of the University of […]

Global warming: Plants and animals moving up in elevation and to higher latitudes in response to warmer temperatures

Posted on August 19, 2011 by Bob Berwyn

Many species trying to move up in elevation or to higher latitudes to find suitable habitat 

Many animals and plants aren’t just sitting still in the face of a changing climate. New research by University of York biologists shows that species are responding to a warming planet by moving […]

Global warming to take big toll on western trout

Posted on August 17, 2011 by Bob Berwyn

Habitat expected to shrink by 50 percent in coming decades

A combination of rising temperatures and changes in the timing of runoff and streamflows could reduce trout habitat in the western U.S. by about 50 percent during the next 70 years, with some populations disappearing completely within just a […]

Global warming: 10 million Facebook votes wanted

Posted on August 17, 2011 by Bob Berwyn

Campaign targets action at  COP 17 in Durban

A new initiative launched in Germany this week aims to harness the power of social media, and Facebook in particular, to show world leaders that citizens of the world want action, and not just words, on climate change. The Climate Vote […]

July the seventh-warmest on record for planet Earth

Posted on August 16, 2011 by Bob Berwyn

Long-term warming trend continues unabated

Exceptional warmth across most land masses and warmer than average sea surface temperatures across much of the planet combined to make July 2011 the seventh-warmest on record for planet Earth, 1.03 degrees above the 20th century average. The year-to-date is the 11-warmest on record, […]

Global warming: Whitebark pine in danger of extinction

Posted on August 16, 2011 by Bob Berwyn

Feds say global warming one of the key threats to iconic western trees

Climate change is one of the factors threatening whitebark pine, U.S. Fish and Wildlife Service biologists said last month, declaring that the iconic high altitude tree of the northern Rockies needs endangered species protection. But even […]

Global warming: Rising sea temps displacing fish

Posted on August 15, 2011 by Bob Berwyn

Researchers trace significant shift in mackerel patterns

Cyclical changes in Atlantic weather patterns and a general warming of seawater the East Coast of the U.S. is changing the distribution patterns of Atlantic mackerel, important for commercial and recreational fisheries in the region. The environmentally-driven shift in distribution patterns will probably […]

Global warming: Arctic sea ice hit record low in July 2011

Posted on August 14, 2011 by Bob Berwyn

New satellites help measure thickness of the ice

Arctic sea ice extent reached a record low level in July before recovering at the end of the month. As of July 31, the sea ice extent was at 2.62 million square miles. During the northern hemisphere summer, the ice shrinks […]

Global warming: Can species be saved with relocations?

Posted on August 11, 2011 by Bob Berwyn

Researchers try to spell out a rational plan for so-called assisted colonization in the face of climate change

As global warming causes ever-greater disruption to plants and animals, conservation biologists are having serious discussions about how and when to relocate species so they they can survive for the long-term. […]

Forest-killing fungi could multiply in a warming world

Posted on August 8, 2011 by Bob Berwyn

Permian forest extinction offers clues to current climate change impacts

A warming climate has already been implicated in the rapid expansion of bark beetles that have killed millions of acres of western forests. The beetles transmit a fungus that causes the blueish stain seen in the cut stems of […]

Global warming: Ancient driftwood offers sea ice clues

Posted on August 7, 2011 by Bob Berwyn

Tracing the age and origin of driftwood in northern Greenland enables scientists to estimate sea ice extent before accurate satellite measurements began

Tracking chunks of ancient driftwood as their main clues, a team of Danish researchers is unraveling some of the mysteries of the Arctic icepack. The Polar region […]

Is global warming causing the U.S. heat wave?

Posted on August 4, 2011 by Bob Berwyn

More than 1,000 high temperatures records broken in July, 3,919 for the year, with all-time heat records in Texas, Kansas, Arkansas and Oklahoma

Cities and towns across the U.S. continue to set high temperature marks at a record pace during a summer heatwave that just won’t end. The National […]

Global warming: Polar bear lies refuted

Posted on August 3, 2011 by Bob Berwyn

The future looks dim for Arctic predators

A recent story about the travails of a federal researcher who is being investigated after documented drowning polar bears drew a record number of page views for Summit Voice — more than 75,000 in two days, which isn’t too bad for an […]

Global warming: Topsy-turvy snowpack in the West

Posted on August 3, 2011 by Bob Berwyn

Studies suggest a significant long-term decline in western snowpacks

This winter’s snowy La Niña episode may only be a small blip of relief in a century-long trend of declining snowpack across the West, according to a U.S. Geological Survey study released last month. Besides measuring overall snowpack losses, the […]

Feds change tune on investigation of Arctic scientist

Posted on August 2, 2011 by Bob Berwyn

Previous questioning of Charles Monnett focused on research; Inspector General‘s office now says it’s about contract procurement and project management

The federal government is now saying its investigation of a biologist working in the Arctic is related to the management and procurement side of a polar bear study, despite […]

Global warming: Ice shelves could melt by 30 feet per year

Posted on August 2, 2011 by Bob Berwyn

Researchers try to answer the ages-old chicken-and-egg riddle

Paleo-climatologists who recently studied historic episodes of melting ice shelves say that just a few degrees of ocean warming could trigger another rapid meltdown. The results are important, the researchers said, because they show that warmer water could cause a comparatively […]

Morning photo: Ice at risk

Posted on August 2, 2011 by Bob Berwyn

What happens if it all melts?

Nearly every day, there’s a new scientific study that points out the risks associated with the accelerated pattern of global warming that we’ve caused with greenhouse gas emissions. One of the most recent research projects suggests that even a slight warming subsurface ocean temperatures could trigger […]

Global warming: Invasive grasses to thrive in warmer world

Posted on August 1, 2011 by Bob Berwyn

Consequences include loss of native species, greater wildfire risks

The warmer and drier conditions predicted across the West by most climate change models will help invasive grasses replace native vegetation. The exotics are better equipped to deal with warmer weather. Some of them harbor animals that attack endangered species, […]

Is Colorado Ground Zero for global warming?

Posted on July 30, 2011 by Bob Berwyn

New ‘climate normals’ indicate dramatic warning across the country

Colorado may be warming up faster than anywhere else in the contiguous 48 states, according to a new map published as part of the 10-year “climate normals” update by the National Oceanic and Atmospheric Administration. A map included in the […]

Climate: June 2011 was the 7th warmest on record

Posted on July 29, 2011 by Bob Berwyn

Ronald Reagan was president the last time monthly temperatures were below the 20th century average

The world is warming at an unrelenting pace, according to the latest global monthly summary from the National Climatic Data Center, which showed that the combined land and ocean average surface temperature for June […]

Global warming: Tundra fires are huge carbon sources

Posted on July 28, 2011 by Bob Berwyn

Another global warming feedback loop, and it’s not good 

Tundra fires have the potential to dramatically boost levels of carbon dioxide in the atmosphere in a very short time, according to researchers who studied the 2007 Anaktuvuk River fire, which burned 401 square miles as the largest tundra fire […]

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Global warming: More fires, fewer lodgepole pines

Posted on July 26, 2011 by Bob Berwyn

Increasing temps and fire frequency could drive rapid and dramatic changes in subalpine and boreal forests

Warmer temperatures in the West will increase the frequency of fires in Yellowstone’s vast lodgepole pine stands, which could result in dramatic changes to the region’s forest landscapes in the next few decades. “What […]

Climate: North American snowpack below average for the eighth year in a row despite record snow in parts of the West

Posted on July 22, 2011 by Bob Berwyn

Global warming deniers just don’t get the difference between climate and weather

Climate and weather are complex topics, so when I recently posted a story about how sea levels will continue to rise for centuries more, even if we stop polluting the atmosphere with greenhouse gases, the usual bunch of […]

Study pinpoints greenhouse gas emissions from livestock

Posted on July 20, 2011 by Bob Berwyn

Year-long study tallies methane, ammonia, nitrous oxide and CO2 at Idaho feedlot

It’s long been acknowledged that greenhouse gas emissions from agriculture are an important factor in the global warming equation. By some measures, the livestock sector accounts for 18 percent off all greenhouse gas emissions — as measured […]

Global warming: Sea levels could rise for centuries to come

Posted on July 19, 2011 by Bob Berwyn | Edit

Strong warning on climate threshold from University of Arizona researchers By Summit Voice SUMMIT COUNTY — Ice sheets in the Arctic and Antarctic will probably keep melting, and sea levels will keep rising for a long time — even if greenhouse gas emissions are curbed in the near future, according to a University of Arizona-led […]

Climate: Warmer oceans absorbing less carbon

Posted on July 13, 2011 by Bob Berwyn

Yet another climate feedback loop with scary consequences

In the past few millennia, the world’s oceans have helped maintain a climatic balance by absorbing atmospheric carbon — up to one-third of all human carbon emissions, including atmospheric carbon dioxide and its associated global changes. But a broad and detailed […]

Wildfires spur emissions of greenhouse gases from soil

Posted on July 12, 2011 by Bob Berwyn

Climate-fire feedback loop likely to accelerate global warming

An accidental grassfire during a series of climate change experiments showed that increased nitrogen deposits in soils, combined with wildfires, can significantly increase the release of nitrous oxide from the soil, which in turn can accelerate global warming. “Soils are the […]

Global warming: Early spring warmup threatens plants

Posted on July 10, 2011 by Bob Berwyn

Earliest bloom dates have advanced by six days in past few decades

There little doubt that a changing climate has led to an earlier spring bloom for many plants around the world. This reset of nature’s clock has been well-documented, as scientists track the earliest blooms of many different species. […]

Global warming deniers to pow-wow in Washington

Posted on June 25, 2011 by Bob Berwyn

Oil-funded group wants to ‘restore scientific method’ to climate science

If it weren’t so dangerous, it would be funny. The Heartland Institute, a conservative think tank funded by Exxon Mobil and Charles Koch, is once again rounding up its stable of climate change deniers for the sixth annual Conference […]

Climate: Sea-levels rising at the fastest rate in 2100 years

Posted on June 23, 2011 by Jenney Coberly

Research along U.S. Atlantic Coast pins sea level change to global warming

The romantic house that was the setting for the bed-and-breakfast scenes in the 2008  film Nights in Rodanthe may soon be swallowed up by the ocean, as sea levels along the U.S. Atlantic coast continue to rise in […]

Climate: High-mountain wildflower season getting shorter

Posted on June 22, 2011 by Jenney Coberly

 Changes have implications for pollinators like bees and hummingbirds

As the spring and summer become warmer and drier in the high altitudes of the southern Rocky Mountains, the wildfower season is getting shorter, with a fall-off in flowering in mid-season. That could have serious consequences for the entire ecosystem, […]

Climate: May global temps above average

Posted on June 21, 2011 by Bob Berwyn

U.S. readings below average for the month, as drought expands across Southeast

For the first time in quite a while, May 2011 brought below average temperatures across the U.S.A. A few regions were warmer than average, but for the country as a whole, the average May temperature was 60 […]

Environment: Jellyfish may get last dance

Posted on June 19, 2011 by Bob Berwyn

Balance of ocean food web at risk as jellyfish blooms increase

Warmer water temperatures, over-fishing and nutrient loading in coastal areas could result in a jellyfish takeover, according to a team of biologists who studied the role of the slimy floaters in marine ecosystems. The scenario might be good […]

Environment: Gulf dead zone could be the largest ever

Posted on June 19, 2011 by Jenney Coberly

2011 hypoxic zone to be affected by extreme Mississippi River flooding

The 2011 hypoxic dead zone zone in the Gulf of Mexico is predicted to be the largest ever recorded due to extreme flooding of the Mississippi River this spring, according to an annual forecast by a team of […]

Global warming: Venice storm surges may decrease

Posted on June 11, 2011 by Bob Berwyn

Shifting storm patterns may have implications for preservation of historic city

Although sea-level rise caused by global warming is considered a serious threat to Venice, new research suggests that storm surges in the northern Adriatic Sea may decrease in frequency by 30 percent in the next few decades, leaving […]

Environment: Invasive weeds to thrive with global warming

Posted on June 5, 2011 by Bob Berwyn

Yellow starthistle grows to six times its normal size with levels of atmospheric carbon dioxide expected in the next few decades

Yellow starthistle, a noxious week that’s already gained a foothold in Summit County, could become even more of a problem with warming global temperatures and more carbon dioxide […]

Environment: CO2 emissions reached new record in 2010

Posted on June 1, 2011 by Bob Berwyn

Per capita emissions still highest in developed countries

After a small recession-related dip in 2008, global carbon dioxide emissions from energy production climbed to record levels in 2010, according to the latest estimates released by the International Energy Agency. Total emissions reached 30.6 gigatons, up about 5 percent from […]

Environment: Ocean acidification a ‘one-way’ experiment

Posted on June 2, 2011 by Bob Berwyn

Clownfish may lose hearing, become vulnerable to predators as C02 levels rise

Increasing acidification of the oceans is affecting sensory organs in fish and could make some marine species more vulnerable to predators. Existing research shows that the CO2 in the oceans is causing some fish to lose their […]

Antarctic current seen as key player in global climate

Posted on May 31, 2011 by Bob Berwyn

Major global climate change from tropical Eocene conditions to cooler, modern climate linked to formation of the Antarctic Circumpolar Current

In trying to understand current global climate changes, researchers often reach far back into the planet’s history to try and understand what caused past shifts. One of the most significant […]

Research pinpoints historic Greenland climate changes

Posted on May 31, 2011 by Bob Berwyn

New evidence shows Norse abandoned settlements when the weather got colder

Based on archaeological evidence, researchers have long speculated that the Norse settlements on Greenland disappeared when the climate turned much colder in the North Atlantic. Now, paleo-climatologists have reconstructed a 5,600-year temperature record from lake sediments that gives […]

Environment: Abalone threatened by climate change

Posted on May 30, 2011 by Bob Berwyn

New research give direct evidence that global warming threatens an endangered species

Already under pressure from poachers, the northern abalone could be pushed to the brink of extinction by rising levels of ocean carbon dioxide, according to a new report from the University of British Columbia. Northern abalone are […]

Colorado: Citizen science project to monitor pikas

Posted on May 26, 2011 by Bob Berwyn

Long-term citizen science effort aimed at measuring climate change impacts in the Colorado high country

The climate of the mountain West is changing, and some biologists have already raised alarm about the American pika, a small mammal that lives in some of the most rugged nooks and crannies of […]

Biodiversity of South Georgia Island rivals the Galapagos

Posted on May 25, 2011 by Bob Berwyn

Study of Southern Ocean marine life provides benchmark for future environmental impacts of rapidly changing Antarctic climate

Sea spiders the size of dinner plates and tow-meter-long ribbon worms that eat prey several times their own size were among the 1,400-plus species cataloged by the British Antarctic Survey in a […]

Massive Canadian fires linked with beetles, climate change

Posted on May 21, 2011 by Bob Berwyn

Pine beetles adapting to new habitat

Wildfires in Canada have burned 909 percent more than the average number of acres this year, mainly due to a number of blazes in northern Alberta that have been described as “freakish firestorms” by forestry officials. Some scientists in Canada are conjecturing that […]

Global warming: Ancient ocean changes are warning signs

Posted on May 20, 2011 by Bob Berwyn

Fossil record shows potential for sudden ocean changes as CO2 builds

After studying prehistoric ocean sediments, a team of researchers from Australia and the UK concluded that increasing concentrations of carbon dioxide in the oceans will likely lead to massive die-offs of marine life. The fossil record pinpoints a […]

Climate: April 2011 was the sixth-warmest on record

Posted on May 17, 2011 by Bob Berwyn

Northwestern U.S. and Australia were the only significant land areas with cooler than average temperatures during the month

April was another warm month for Planet Earth, with the combined land and ocean average surface temperature running 1.06 degrees above the 20th century average — the sixth-warmest April on record […]

UN climate panel adopts strict reporting standards

Posted on May 16, 2011 by Bob Berwyn

Global climate change panel preparing new overall assessment of impacts

The Intergovernmental Panel on Climate Change, which has been a whipping boy for the global-warming deniers on the fringe of the climate debate, last week adopted stringent new standards that will give the panel even more credibility as it […]

Global warming hits crop yields, affects food prices

Posted on May 10, 2011 by Bob Berwyn

North America not affected yet, according to new Stanford study

Climate change has significantly affected global wheat and corn yields since the 1980s, but North America hasn’t been affected yet, according to a new study from Stanford University. The researchers also said that those climate change impacts have caused […]

Climate: ‘The music of El Niño’

Posted on May 7, 2011 by Bob Berwyn

New study shows how El Niño may respond to climate change

El Niño and La Niña, the two Pacifc siblings that influence weather world-wide, are linked to larger climate cycles in the eastern–central tropical Pacific, where climate swings between warm and cool phases, each lasting from 50 to 90 […]

Global warming: Arctic melting faster than projected

Posted on May 5, 2011 by Bob Berwyn

20 percent drop in snow cover, seasonal changes and permafrost temperature increases add up to massive impacts

Global warming impacts in the Arctic are much more dramatic than predicted by many climate models, with summer temperatures the past few decades the highest in 2000 years, and a 20 percent […]

South Atlantic current a big player in global climate

Posted on May 3, 2011 by Bob Berwyn

Warm, salty water from the south could balance impacts of melting polar ice cap

Leakage from an ocean current running along the east coast of Africa could ameliorate some anticipated global warming impacts in the northern hemisphere, according to University of Miami researchers, who recently published a study  […]

Global warming: Penguin declines a ‘smoking gun’

Posted on May 2, 2011 by Bob Berwyn

Warming temps, loss of sea ice linked to sharp drop in penguin numbers

Populations of two penguin species living in western Antarctica are declining rapidly, most likely because the loss of sea ice is reducing the abundance of krill, their primary food source, as well as competition from whales […]

Environment: Giant eddies discovered in Pacific Ocean

Posted on May 1, 2011 by Bob Berwyn

Circulation shows link between surface winds and deep-sea ecology

Wind-driven swirls of water up to 500 kilometers wide and 2,500 meters deep may be helping disperse tiny sea creatures, chemicals and heat from hydrothermal vents on the ocean floor. The deep-sea eddies were discovered by researchers from  […]

Western water supplies will take big climate change hit

Posted on April 27, 2011 by Bob Berwyn

BuRec report says higher temps, changes to runoff likely under most climate change scenarios

Water supplies in the western United States could be hit hard by projected global warming impacts, including temperature increases of 5 to 7 degrees across the region, according to the Department of Interior […]

La Niña may return for an encore next winter

Posted on April 22, 2011 by Bob Berwyn

Historical patterns show strong La Niñas usually last two years

After the strongest La Niña conditions in 35 years, sea surface temperatures in the eastern and central equatorial Pacific started climbing sharply last month, signaling a shift in the larger Pacific ocean and wind patterns […]

Warming in equatorial Pacific linked to Antarctic thaw

Posted on April 18, 2011 by Bob Berwyn

Rossby waves pushing warm westerlies toward the Antarctic Peninsula

The cold currents of the Southern Ocean aren’t completely insulating Antarctica from the impacts of global warming. It turns out that rising sea surface temperatures in the equatorial Pacific and near the International Date Line are driving a Rossby wave […]

Forests sequester more carbon than previously thought

Posted on April 18, 2011 by Bob Berwyn

Researchers develop the most accurate carbon-balance assessment to-date 

Forests and other terrestrial ecosystems across the U.S. can absorb more carbon than previously thought, but major droughts or other disturbances can affect their ability to sequester emissions. Widespread droughts, like those in 2002 and 2006, can cut the amount of […]

Global warming: Arctic temps climb off the charts

Posted on April 16, 2011 by Bob Berwyn

For the planet, March was the 13th-warmest on record; Antarctic sea ice was the second-lowest on record

Warmer than average temperatures prevailed across much of the planet in March, especially in the far north, where readings were so high that climatologists had to add a new color — hot pink […]

Florida’s coral reefs hit hard by record cold water temps

Posted on April 12, 2011 by Bob Berwyn

Cold-water bleaching in the Keys the first since late 1970s

The planet may be heating up, but parts of Florida experienced the coldest December on record, chilling the waters around the Keys to the point that it killed coral reefs. […]

Near-record wildlfire numbers in March 2011

Posted on April 11, 2011 by Bob Berwyn

17,000 fires have burned across 589,000 acres so far this year

The number of wildfires this year to-date has doubled from last year […]

Record March high temps outpace record lows by 5 to 1

Posted on April 11, 2011 by Bob Berwyn

Overall, March was 1.4 degrees above the long-term average

Record high temperatures outnumbered record lows by a ratio of five to one during March, with 901 locations across the country recording their highest temperature single-day readings. A huge number of those record highs were reported from across Texas […]

Fossilized coral reefs offer global warming clues

Posted on April 9, 2011 by Bob Berwyn

Free-floating coral likely to survive; structured reefs will probably disappear

Fossilized coral reefs more than 2 million years old are providing some clues about how global warming may affect existing reefs. Scientists from the University of Miami are analyzing reefs from Pliocene era […]

Global warming opinions change with the wind

Posted on April 7, 2011 by Bob Berwyn

Climate change belief hinges on personal experience, relevant or not

Whether you’re hot or cold on any given day may influence your opinion on global warming and climate change much more than the reams of scientific studies on the subject. New research from Columbia University suggests that people are […]

Global warming: Pool of icy meltwater lurks in Arctic

Posted on April 6, 2011 by Bob Berwyn

European climate researchers studying future impacts to Atlantic Ocean currents

A pool of icy meltwater in the Arctic Ocean is growing and could disrupt important circulation systems in the Atlantic when it spills southward, according to European climate researchers who have been try to pinpoint future climate change impacts. […]

Mangrove forests tabbed as key carbon sinks

Posted on April 5, 2011 by Bob Berwyn

New research highlights importance of coastal preservation

Coastal mangrove forests store more carbon than almost any other forest on Earth, according to a study conducted by a team of U.S. Forest Service and university scientists. Their findings are published online in the journal Nature Geoscience. […]

Biologists document loss of emperor penguin colony

Posted on April 5, 2011 by Bob Berwyn

Climate change seen as likely factor

British scientists in Antarctica have documented the disappearance of an emperor penguin colony from an island near the west coast of the Antarctic Peninsula. The area has warmed significantly in recent decades […]

Antarctic ecosystems hit hard by human impacts

Posted on April 1, 2011 by Bob Berwyn

Fishing, tourism and global warming cited as top threats in new study

While the Antarctic Treaty provides a framework for protecting the resources of the remote region, but some of the key threats are not being fully addressed, according to a team of scientists from the U.S. and UK […]

‘No regrets’ policy for long-term climate change planning

Posted on March 30, 2011 by Bob Berwyn

Flexible adaptation policies needed in developing countries

The well-respected London School of Economics is warning that developing countries must start considering climate change impacts in their long-term planning. That includes looking at potential changes in the frequency and intensity of extreme weather events to avoid “locking in” vulnerabilities […]

Coastal ecosystems seen as keys to global carbon cycle

Posted on March 29, 2011 by Bob Berwyn

Mangroves, sea grass beds and tidal marshes store five time more carbon per acre than tropical rainforests

The destruction of coastal carbon ecosystems, including mangroves, seagrasses and tidal marshes, is leading to rapid and long-lasting emissions of CO2 into the ocean and atmosphere […]

Forest Service adopts climate-change ‘scorecard’

Posted on March 28, 2011 by Bob Berwyn

USFS chief Tidwell explains agency’s climate change plan during a Senate budget hearing

Recognizing that climate change calls for a coordinated response, the U.S. Forest Service is implementing a climate change road map to guide the agency’s efforts in the face of potentially staggering impacts to the landscapes and watersheds […]

Icebergs tabbed as biodiversity hotspots

Posted on March 26, 2011 by Bob Berwyn

Melting bergs may play a role in global carbon cycle

As icebergs melt, they dilute and cool surrounding water, raising chlorophyll levels that may, in turn, increase carbon dioxide absorption in the Southern Ocean, according to a research team funded by the National Science Foundation. The new research has global […]

Global warming: Joshua trees headed for oblivion

Posted on March 25, 2011 by Bob Berwyn

Fossil record and climate models combine to paint a grim picture for the iconic desert plant
Climate change is likely to all but wipe out the Southwest’s iconic Joshua Trees, according to U.S. Geological Survey scientists who predict that conditions will become too warm across 90 percent of the […]

Global cooling system may be failing fast

Posted on March 25, 2011 by Bob Berwyn

Maximum sea ice extent at record low level as melting season begins
With the vernal equinox, the sun starts once again to shine north of the Arctic Circle, and that marks the beginning of the melt season for sea ice in the region. Researchers with the Boulder-based National Snow […]

Remember the ozone hole? It’s back, over the North Pole

Posted on March 19, 2011 by Bob Berwyn

Climate change linked to abnormally cold temperatures in the Arctic stratosphere; those conditions result in regional ozone loss

While ozone hole over Antarctica has slowly started to heal — thanks to concerted global action to ban chlorofluorocarbons — unusually low temperatures in the Arctic ozone layer have recently initiated […]

February ranked as 17th-warmest for planet Earth

Posted on March 18, 2011 by Bob Berwyn

Combined sea and ocean surface temps were .72 degrees above average for the month based on records going back to 1880

The winter may have been colder than average across parts of North America and northern Europe, but global temperatures continued warmer than average during the month of February, with the combined […]

Deep ice core samples reveal Earth’s climate history

Posted on March 14, 2011 by Jenney Coberly

Study of ice core samples deposited over millennia reveal that climate change can be very rapid, happening in a matter of decades

Deep in the frozen vault of the National Ice Core Laboratory in Lakewood, Colorado, pieces of ice up to nearly a half a million years old are helping researchers unravel […]

NASA: Arctic meltdown is speeding up

Posted on March 12, 2011 by Bob Berwyn

Latest data shows polar ice cap shrinking 9 percent per year

A new, complete data set of sea ice measurements show that Arctic perennial is melting at about 9 percent per decade — much faster than previous estimates. If the same rate of melting continues for a few more […]

Arctic sea ice changes affecting plankton blooms

Posted on March 7, 2011 by Bob Berwyn

Changes could have huge impacts on ocean food chains, global carbon cycle

Changes in the Arctic ice pack are starting to have an effect on the timing of the annual phytoplankton bloom, a critical event in the marine food chain and in the global carbon cycle. By studying satellite data, […]

Global warming: February sea ice extent at record low

Posted on March 6, 2011 by Bob Berwyn

Northern hemisphere snow cover well above average

Arctic sea ice extent in February tied with 2005 for lowest on record since 1979, when satellite measurements began. Ice covered about 5.54 million square miles of the Arctic area, about half a million square miles below the average. The sea ice […]

Global warming: Lodgepole pine may be down — and out

Posted on March 1, 2011 by Bob Berwyn

Changing climate shrinks habitat for iconic western trees

Lodgepole pines may not only be down from the pinebeetle epidemic, it may be out, thanks to global warming, which is rapidly shrinking suitable habitat for the iconic Western tree. The hardy pine, which thrives in harsh mountain climates, may disappear […]

Denver a leader in green building push

Posted on March 1, 2011 by Bob Berwyn

Nearly 30 LEED certified projects certified in 2010

Denver is on the forefront of the green building revolution, with almost 30 projects that have achieved LEED certification since 2010, two of which have achieved the highest platinum rating. “Colorado’s culture of sustainability and conservation are part of its DNA; […]

Global warming: Desert dust storms to get worse

Posted on February 27, 2011 by Bob Berwyn

U.S. Geological Survey, UCLA study shows loss of vegetation in the Southwest will lead to more frequent and intense dust storms

Desert dust blowing from the Southwest into the Rockies has been implicated in everything from earlier snowmelt and air quality violations to causing avalanches. A new study shows  […]

Upcoming climate workshop includes tour of ice core lab

Posted on February 26, 2011 by Bob Berwyn

How will climate affect Colorado’s future water supplies?

Researchers use all sorts of historic records to try and track various natural phenomena that influence climate, but one of the most useful tools are ice cores taken from glaciers. The cores contain more climate information than any other natural recording […]

Scientists cleared in ‘climategate’ emails — again

Posted on February 25, 2011 by Bob Berwyn

Inspector General report finds no wrong-doing, no reason to doubt NOAA‘s climate data

Global warming skeptics may have to find a new axe to grind after the Department of Commerce Inspector General reviewed the so-called Climategate emails and found there was no evidence of improper manipulation of data, failure […]

EPA wants comment on annual greenhouse gas inventory

Posted on February 23, 2011 by Bob Berwyn

U.S. emissions dropped 6 percent in 2009 to lowest level since 2005

While ideologically driven controversy continues to swirl around EPA plans to regulate greenhouse gases, the agency is moving ahead. One of the first steps to establishing a regulatory framework is to know what it is you’re regulating. […]

Global warming: Time to look for higher ground

Posted on February 21, 2011 by Bob Berwyn

Research team pinpoints the impacts of sea level rise

Climate researchers have long known that rising sea levels from global warming will inundate coastal areas, and on some low-lying islands, residents are already making plans to relocate entire populations. Now, a new study led by University of Arizona scientists […]

Global warming to increase human health risks

Posted on February 20, 2011 by Bob Berwyn

NOAA teams up with university researchers to show how warmer temperatures will increase toxic algae blooms and exposure to other waterborne pathogens

SUMMIT COUNTY — At the same time that ecologists and forest health researchers discussed some of their latest global warming research at a symposium in Aspen, Colorado, scientists at the […]

Global warming: Forest impacts seen worldwide

Posted on February 18, 2011 by Bob Berwyn

New study looks for patterns in global forest die-offs

Colorado’s forests, under attack by insects and weakened by increasing heat and drought, are not the only forests that may be feeling the impacts of climate change. In North Africa, a massive die-off of cedars has been linked to drought, […]

Global warming: Permafrost meltdown is coming

Posted on February 17, 2011 by Bob Berwyn

Carbon surge could add up to 190 gigatons — about half of what’s been pumped into the atmosphere since the start of the industrial age

Between 30 to 60 percent of the Earth’s permafrost will melt by 2200, releasing enormous quantities of carbon into the atmosphere, according to a […]

Wolverines face dire global warming threat

Posted on February 10, 2011 by Bob Berwyn

Study suggests wolverine habitat could melt away by mid-century

A targeted climate-change study by scientists with the National Center for Atmospheric Research in Boulder suggests that rising temperatures may completely eliminate existing habitat for wolverines in the contiguous United States. “The researchers combined regional-scale climate projections with knowledge of […]

Summit County: Forest health and global warming

Posted on February 9, 2011 by Bob Berwyn

Is there a link between global climate change and the pine beetle epidemic?

SUMMIT COUNTY — You don’t have to be an early-bird to attend this week’s meeting of the Summit County Forest Health Task Force. The group normally meets early Thursday morning, but in a shift from its regular schedule, the […]

Arctic sea ice extent at record low in January 2011

Posted on February 9, 2011 by Bob Berwyn

Warm air temps, shifts in hemispheric winds tabbed as causes for slow freeze-up

Arctic sea ice was at an all-time record-low level since the era of satellite tracking started, as air temperatures over the polar region were 4 to 11 degrees above average for the month. For the second […]

Researchers ask Congress to revisit climate change science

Posted on February 3, 2011 by Bob Berwyn

‘There are no Democratic or Republican carbon dioxide molecules; they are all invisible and they all trap heat.’

Facing a potentially hostile political climate — especially in the House, where new Republican leaders seem to want to start an ideological crusade against climate science, a group of leading scientists […]

Global warming: Key ocean channel heating up

Posted on January 29, 2011 by Bob Berwyn

Warmer waters flowing north contribute to loss of Arctic sea ice

Ocean temperatures in a key North Atlantic channel are warmer than at any time during the past 2,000 years — well outside the range of natural variations seen in the historic record, according to University of Colorado researchers […]

Loss of polar sea ice to amplify global warming

Posted on January 24, 2011 by Bob Berwyn

Previous research may have underestimated impacts of loss of reflectivity

Loss of sea ice cover in the Arctic could amplify global warming trends much more than previously believe, according to a new study funded by the National Science Foundation. The research analyzed the albedo feedback in the Northern Hemisphere […]

Global warming: New study pinpoints glacier impacts

Posted on January 11, 2011 by Bob Berwyn

Smaller glaciers will melt faster and fuel sea level rise

A new study by Canadian researchers suggests that smaller glaciers in mountain regions will be especially hard-hit by global warming, with many of them likely to shrink by 50 percent from their current ice volumes. The melt-off from those […]

Even with zero CO2, warming to roll on for 1,000 years

Posted on January 10, 2011 by Bob Berwyn

West Antarctic ice sheet likely to collapse; sea level to rise 15 feet

Even if CO2 emissions were to cease completely by 2010, the climate change already under way would continue for at least 1,000 years, according to new study done by researchers at the Canadian Centre for Climate […]

Growing hypoxic zones threaten ocean fisheries

Posted on December 31, 2010 by Bob Berwyn

Snake River zinc increase linked to global warming

Posted on December 20, 2010 by Bob Berwyn

Opinion: Fossil fuel dinosaurs try to block new EPA rules

Posted on December 19, 2010 by Bob Berwyn

Curbs on greenhouse gases could save polar bears

Posted on December 18, 2010 by Bob Berwyn

Southwestern forests especially sensitive to global warming

Posted on December 14, 2010 by Bob Berwyn

Court rejects early challenge to EPA greenhouse gas regs

Posted on December 13, 2010 by Bob Berwyn

Fate of Aegean reptiles foreshadows global warming impacts

Posted on December 12, 2010 by Bob Berwyn

11th-hour climate deal in Cancun

Posted on December 11, 2010 by Bob Berwyn

Increased plant growth could slow rate of global warming

Posted on December 8, 2010 by Bob Berwyn

Coastal wetlands at risk from global warming

Posted on December 6, 2010 by Bob Berwyn

Global warming: New concerns about peatland methane

Posted on December 1, 2010 by Bob Berwyn

Global warming: Lake ecoysytems at risk

Posted on November 25, 2010 by Bob Berwyn

CO2 emissions bounce back in 2010

Posted on November 22, 2010 by Bob Berwyn

Large tundra fires linked to global warming

Posted on November 20, 2010 by Bob Berwyn

Lake Tahoe warming in synch with other major lakes

Posted on November 18, 2010 by Bob Berwyn

Mountain micro-climates provide global warming refuge

Posted on November 13, 2010 by Bob Berwyn

Mainstream media called out on global warming story

Posted on November 9, 2010 by Bob Berwyn

Ocean currents sensitive to saline balance

Posted on November 8, 2010 by Bob Berwyn

Coastal archaeological sites face sea level threat

Posted on November 8, 2010 by Bob Berwyn

Clouds: The wild card in the global warming deck

Posted on November 6, 2010 by Bob Berwyn

Antarctica: King crab invasion?

Posted on November 3, 2010 by Bob Berwyn

Global warming: A tale of two hemispheres?

Posted on November 3, 2010 by Bob Berwyn

Wet-dry cycles in Southeast linked to global warming

Posted on November 1, 2010 by Bob Berwyn

New coastal research station established in Wisconsin

Posted on October 27, 2010 by Bob Berwyn

Tracking global warming in Colorado’s alpine zone

Posted on October 23, 2010 by Bob Berwyn

Will global warming bring widespread drought?

Posted on October 20, 2010 by Bob Berwyn

Full-scale studies of ocean acidification planned

Posted on October 18, 2010 by Bob Berwyn

Americans starting to get climate change picture

Posted on October 16, 2010 by Bob Berwyn

Global warming: Pacific Ocean thermocline shifting

Posted on October 13, 2010 by Bob Berwyn

Soils drying in large parts of Southern Hemisphere

Posted on October 11, 2010 by Bob Berwyn

Worldwide rallies held to combat global warming

Posted on October 9, 2010 by Bob Berwyn

Massive crop failures more likely with global warming

Posted on October 9, 2010 by Bob Berwyn

Scientists measure surging global freshwater runoff

Posted on October 7, 2010 by Bob Berwyn

Global warming displacing Australian fish

Posted on October 3, 2010 by Bob Berwyn

Global warming may be factor in ibex decline

Posted on September 30, 2010 by Bob Berwyn

Study of Antarctic moss could deliver global warming clues

Posted on September 30, 2010 by Bob Berwyn

Warming found deep in the oceans

Posted on September 22, 2010 by Bob Berwyn

Polar sea ice paradox resolved?

Posted on September 21, 2010 by Bob Berwyn

Southwest already hit hard by climate change

Posted on September 17, 2010 by Bob Berwyn

August 2010: Third-warmest ever for Earth

Posted on September 15, 2010 by Bob Berwyn

Tree-killing bugs to spread faster in a warming world

Posted on September 12, 2010 by Bob Berwyn

Global warming: Arctic sea ice reaches second-lowest level

Posted on September 8, 2010 by Bob Berwyn

Hypoxic ‘dead zone’ found off Pacific Northwest coast

Posted on September 4, 2010 by Bob Berwyn

New report documents melting Asian glaciers

Posted on September 1, 2010 by Bob Berwyn

Climate feedback loop from firestorms?

Posted on August 29, 2010 by Bob Berwyn

El Niño intensity has doubled in past few decades

Posted on August 25, 2010 by Bob Berwyn

Indonesian coral reefs hit hard by global warming

Posted on August 20, 2010 by Bob Berwyn

Global warming: Dire outlook for rainforests

Posted on August 9, 2010 by Bob Berwyn

Global warming heat waves expected to impact birds

Posted on August 9, 2010 by Bob Berwyn

New research focuses on fungi in the alpine zone

Posted on August 8, 2010 by Bob Berwyn

New climate change clues on Hawaii’s Mauna Kea

Posted on August 7, 2010 by Bob Berwyn

Delving deep into the ice of Eemian age

Posted on August 4, 2010 by Bob Berwyn

EPA rejects petitions on global warming endangerment

Posted on August 3, 2010 by Bob Berwyn

Global warming will spur commerce in Arctic

Posted on July 21, 2010 by Bob Berwyn

Global warming and the vanishing tundra

Posted on July 19, 2010 by Bob Berwyn

New study details ocean heat build-up

Posted on July 18, 2010 by Bob Berwyn

Melting ice only one factor in rising sea levels

Posted on July 16, 2010 by Bob Berwyn

Global warming: June sets another all-time record

Posted on July 15, 2010 by Bob Berwyn

Greenland glacier breaks up overnight

Posted on July 13, 2010 by Bob Berwyn

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