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Climate: Study sheds new light on Antarctic sea ice expansion

Growth in sea ice may be slower than reported

The water in the Antarctic Sound can be smooth as glass, and sometimes look thick and oily, probably because it's so cold. Click on the photo to learn about some of the environmental issues in Antarctica.

Scientists are puzzling over the expansion of Antarctic sea ice. bberwyn photo.

Staff Report

FRISCO — Global warming deniers have long been using the observed expansion of Antarctic sea ice as a way to try and confuse the public about the reality of global warming, but some new research by scientists with the Scripps Institution of Oceanography at University of California San Diego suggests the rate of expansion is not as dramatic as reported.

The findings, published in The Cryosphere (European Geosciences Union) acknowledge that there has been some expansion recently, but that some of the reported ice gain may be due to inconsistencies in computer models used to measure Antarctic sea ice. Continue reading

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Crowdfunding: Nearly 70 percent there!

The Rocky Mountain Climate Ranger Project needs your support

It's getting warm around here!

It’s getting warm around here!

Love the Rockies? Support our independent journalism project.

Love the Rockies? Support our independent journalism project.

By Summit Voice

FRISCO — With NOAA reporting yet another record high global temperature for June, and afternoon temperatures soaring into the 80s here in Frisco, there’s every reason to believe that we’re heading for uncharted climate territory in the Rocky Mountains. Already, the birds and bees are out of synch with wildflowers, the snowpack is melting weeks earlier than it used to, and spring dust storms are blackening the Rocky Mountain snowpack more frequently each year.

It’s really important to know what those changes mean for us, and especially for future generations — our kids and grandkids — because they will have to live in the greenhouse-gas warmed world that we’ve created with just a few decades of fossil fuel consumption. That’s why once again I’m asking you, faithful Summit Voice readers and subscribers, to support our Rocky Mountain Climate Ranger project my making a pledge right now at Beacon, our crowdfunding partner: http://www.beaconreader.com/projects/rocky-mountain-climate-rangers.

And just to be clear, the Beacon-backed Climate Ranger project won’t have any negative effect on Summit Voice. In fact, your support will help enrich the Summit Voice news and photo feed.

Some of you already responded to our grassroots appeal in the last few months. It was your generous response that encouraged us to pursue funding for this two-month father-son climate journalism trek. And right now, Beacon is generously matching every pledge dollar for dollar, so when you support us, your money will be doubled. We’re only about a week away from the end of our pledge drive (July 31) and we’ll only be funded if we get the full amount, so your support is critical.

You can support the project for as little as $5 but we have some great incentives for larger pledges, including a free harvest dinner at the popular Sunshine Cafe in Dillon. A $100 pledge includes dinner for two, along with a climate journalism presentation at the Sunshine Cafe. It’s a great deal, and you’d pay almost that much just to have a nice dinner for two, so why not support homegrown environmental journalism at the same time.

For $200, you’ll be invited to the dinner AND you’ll be eligible for a large-format fine art print from one of Summit Voice’s acclaimed online galleries, or an image from the reporting trek — and I’m sure we’ll get some great shots!

With our deadline approaching, please consider making a pledge now, and if you can’t, please pass along this post via email to anyone who might be interested. Thanks for reading and your continued support.

Donate to the Rocky Mountain Climate Ranger project

mtnYour contribution to this independent journalism project will be matched dollar for dollar by Beacon. Click to learn more and make a donation.

Climate: Has global warming slowed down?

Study shows natural variability still a factor in climate change

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op

Staff Report

FRISCO — A cool phase of natural climate variability may have canceled out the heat-trapping effects of greenhouse gases the past 15 years, which would explain the so-called global warming slowdown, according to McGill University physicist Shaun Lovejoy.

In a paper published recently in Geophysical Research Letters, Lovejoy concluded after a statistical analysis of average global temperatures between 1998 and 2013 thatslowdown in global warming during this period is consistent with natural variations in temperature.

In a paper published this month in Geophysical Research Letters, Lovejoy concludes that a natural cooling fluctuation during this period largely masked the warming effects of a continued increase in man-made emissions of carbon dioxide and other greenhouse gases. Continue reading

Climate: Hottest June on record for Planet Earth

Warm oceans drive widespread record warmth

A NASA climate maps shows much of the globe was warmer than average during June 2014.

A NASA climate maps shows much of the globe was warmer than average during June 2014.

By Summit Voice

FRISCO — For the second month in a row, NOAA’s National Climatic Data Center reported that Earth’s average temperature reached a record high, at 1.3 degrees Fahrenheit above the 20th century average, and 0.05 degrees Fahrenheit above the previous record, set in 2010.

Nine of the ten warmest Junes on record have all occurred during the 21st century, including each of the past five years. The new record high was driven in part by persistent ocean heat. The June global sea surface temperature was 1.15 degrees Fahrenheit above the 20th century average. surpassing the previous all-time record for any month by 0.09 degrees Fahrenheit. Read the full report here. Continue reading

Opinion: Lake Hill development should be carbon-neutral

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Bob Berwyn.

Smart up-front planning can minimize our carbon footprint

By Bob Berwyn

FRISCO — Passage of the Lake Hill land conveyance bill by the U.S. Senate last week is good news for Summit County’s efforts to try and keep up with the demand for affordable housing in the pricey mountain resort region, and will also help the U.S. Forest Service by funding a new administrative and maintenance facility. Now that the deal is done, it’s time to start thinking about making sure that the Lake Hill neighborhood becomes a model of sustainable development. Continue reading

Study: There’s huge potential for increased food production on existing land

The recent wheat crisis in Russia is a warning sign for potential large-scale global warming impacts. PHOTO COURTESY THE WIKIMEIDA COMMONS.

The recent wheat crisis in Russia is a warning sign for potential large-scale global warming impacts. PHOTO COURTESY THE WIKIMEIDA COMMONS.

Tweaking farm practices could also reduce greenhouse gas emissions associated with agriculture

FRISCO — A systematic University of Minnesota study of global agricultural resources suggest that improving food systems in a few specific regions could make it possible to both meet the basic needs of 3 billion more people and decrease agriculture’s environmental footprint.

The report, published in Science, focuses on 17 key crops that produce 86 percent of the world’s crop calories and account for most irrigation and fertilizer consumption on a global scale. It proposes a set of key actions in three broad areas that that have the greatest potential for reducing the adverse environmental impacts of agriculture and boosting our ability meet global food needs. Continue reading

Environment: Deep permafrost melt, continued mountain glacier loss highlighted in NOAA 2013 climate check-up

Greenhouse gas levels again reach record highs, wtih CO2 crossing 400 ppm threshold for the first time in the anthropocene — last tine CO2 was this high, Earth was a much warmer place, with sea levels 20 feet higher than now …

glacierloss1980-2012

This graph of global glacier loss is a mirror image to graphs that show the rise in global temperatures. Graphic courtesy NOAA.

Donate to the Rocky Mountain Climate Ranger project

mtnYour contribution to this independent journalism project will be matched dollar for dollar by Beacon. Click to learn more and make a donation.

Staff Report

FRISCO — Last year brought more sobering signs of continued global warming, including record-warm temperatures 20 meters below the ground on Alaska’s North Slope, federal scientists said today, releasing the 2013 State of the Climate report (Blunden, J., and D. S. Arndt, Eds., 2014: State of the Climate in 2013. Bull. Amer. Meteor. Soc., 95 (7), S1-S238).

With heat-trapping greenhouse gases reaching record levels in 2013, “the state of the climate is changing more rapidly than at any time in … in the known record,” said National Oceanic and Atmospheric Administration director Thomas Karl, outlining the findings in the agency’s annual climate check-up. Read the full report here: http://www.ncdc.noaa.gov/bams-state-of-the-climate/2013.php.

The deep permafrost melt in the Arctic is probably linked with declining spring snow cover in the region, scientists said, highlighting a steady decline in the northern hemisphere’s reflective blanket of high latitude snow — think of the sunshade you use in a car windshield. Continue reading

Climate: June was wet and warm across U.S.

California drought still intensifying

A NASA climate maps shows much of the globe was warmer than average during June 2014.

A NASA climate maps shows much of the globe was warmer than average during June 2014.

Staff report

FRISCO — The average June temperature across the contiguous United States was 1.1 degrees Fahrenheit above the 20th century average, not near a record but still high enough to rank as the 33d warmest June on the books, according to the National Climatic Data Center’s monthly summary.

No state reported June temps ranking in the top 10, but if you’re waiting for things to cool down at night, you may be out of luck. The average minimum temperature during the first month of summer was 1.7 degrees above average — the 10th warmest average minimum temperature on record.

Many climate models project that nighttime low temps will rise faster than the overall average temperature, a worrying trend that doesn’t bode well for city dwellers, and especially for low-income residential areas, where residents are not equipped to protect themselves from extreme heat. Continue reading

Environment: Changes in precipitation may drive birds response to global warming

Perched.

Perched.

New model unravels some of the complexities of how wildlife will respond to global warming

Staff Report

FRISCO — Populations of familiar backyard birds like the rufous hummingbird and evening grosbeak are declining, a trend that may be linked with changes in precipitation patterns across the western U.S.

Scientists studying the changes with a new model say precipitation, rather than temperature, may be the the main factor in determining how birds will respond to climate change.

Several past studies have found that temperature increases can push some animal species – including birds – into higher latitudes or higher elevations. Few studies, however, have tackled the role that changes in precipitation may cause, according to Matthew Betts, an Oregon State University ecologist and a principal investigator on the study. Continue reading

Climate: Tracking the urban heat island effect

city heat

Global warming impacts are magnified in cities.

‘Convective efficiency’ the key factor in city temperatures

Staff Report

FRISCO — Many cities, including Denver, have identified extreme heat as one of the most immediate challenges of global warming, primarily because the urban heat island effect will cause temperatures in urban areas to spike well above readings in the surrounding countryside.

Now, a Yale-led study pinpoints the primary causes of the heat island effect, showing that cities in humid climates face the biggest problems. Along with direct risks like heat stroke, increasing temperatures in cities will also worsen air pollution problems. Continue reading

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