Tag: climate change

It’s official — 2016 is the warmest year on record

Climate data show steady pace of global warming

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A NASA map shows the pattern of global warming in 2016.

Staff Report

For the third year in a row, the average global temperature climbed to a new record in 2016, reaching 1.69 degrees Fahrenheit above the 20th century average, according to the most recent state of the climate report from the National Oceanic and Atmospheric Administration.

During a conference announcing the new data, federal scientists said they can confidently  determine that Earth is now in its warmest era since about 125,000 years ago, during a break between ice ages, and there’s no sign that the warmup will stop anytime soon. Continue reading “It’s official — 2016 is the warmest year on record”

Ocean acidification to hit key fisheries

Study projects 55 percent increase in acidity in next 50 years

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The world’s oceans are in big trouble. @bberwyn photo.

Staff Report

There’s no stopping ocean acidification without stopping CO2 emissions, and that’s bad news for many marine species, including Dungeness crabs, according to new new research published in the journal Global Change Biology.

Tiny shell-forming organisms like pteropods and copepods are vulnerable to acidification, but will likely experience only a slight overall decline because they are prolific enough to offset much of the impact, the study found. But those impacts will cascade through ocean ecosystems to affect larger animals like crabs, that will suffer as their food sources decline. Dungeness crab fisheries are valued at about $220 million annually, and may face a strong downturn over the next 50 years. Continue reading “Ocean acidification to hit key fisheries”

Northeastern U.S. warming much faster than global average

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Some parts of the U.S. are warming much faster than the global average.

Study highlights regional climate change hotpsots

By Bob Berwyn

Not all global warming is equal, according to scientists who just published new research on how some areas will warm much faster than others. The study, published in PLOS ONE, shows that the northeastern U.S. is already heating up much faster than the global average and will hit the 2 degree Celsius mark about 20 years before the global average climbs to that level.

“Our study shows that the northeast United States is one of those regions where warming will proceed very rapidly, so that if and when the global target is reached, we will already be experiencing much higher temperatures, with all of the related ecological, hydrological and agricultural consequences,” said Raymond Bradley, a geoscientist at the Northeast Climate Science Center (NECSC) at the University of Massachusetts Amherst. “With the signing of the Paris Agreement to try and limit greenhouse gas emissions, many people have been lulled into a false sense of security, thinking that the 2-degrees C target is somehow a ‘safe’ limit for climate change.” Continue reading “Northeastern U.S. warming much faster than global average”

Climate roundup: The ill winds of global warming

Snow, ice, reindeers and forests …

Sunlit icebergs gleam on the horizon in the Antarctic Sound.
Sunlit icebergs gleam on the horizon in the Antarctic Sound. @bberwyn photo

By Bob Berwyn

2016 ended the way it began, with record warm temperatures and record-low sea ice in the Arctic. Federal scientists tracking the changes released a report detailing how the Arctic is unraveling. I covered it for InsideClimate News: The Arctic Is Unraveling,’ Scientists Conclude After Latest Climate Report.

Just before Christmas I wrote an enterprise piece on how the odds for a white Christmas have changed in different parts of the world. In many regions, the chances of seeing flakes on the holiday have decreased due to climate change, but a little counter-intuitively, they’ve also increased in other places: What Are Your Chances of a White Christmas? Probably Less Than They Used to Be.

In another Christmas-themed story, I reported on a Norwegian study that showed how widespread grazing by reindeer affects the reflectivity in northern tundra regions. It turns out that when the ungulates munch shrubs and brush, they make the world cooler: Save the Reindeer, Save the Arctic.

And with much of the West getting crushed by snowfall thanks to a subtropical weather connection, I explored a new study showing that such Pineapple Express storms are likely to become more frequent as the world warms: Global Warming Will Increase ‘Pineapple Express’ Storms in California.

Another sign that we may be near a climate tipping point is research from California showing that some severely burned forests just aren’t regenerating at all. The fires have become so big and so intense that all the seed stock trees are destroyed, leaving big cleared areas where there is no source for new growth — except for shrubs and brush that quickly grow to dominate the landscape and prevent new seedlings from taking root: California Forests Failing to Regrow After Intense Wildfires.

And some people think that they don’t have to worry about climate change because they heard global warming slowed down between 1998 and 2012. Not so, according to scientists who recalculated the rate of warming in the world’s oceans to show there was no hiatus: Already Debunked Global Warming ‘Hiatus’ Gets Another Dunking.

Droughts and fires affecting Western U.S. air quality

New study tracks increase in summertime haze in Colorado wilderness

Summit County firefighters extinguish a small wildfire between Keystone and Montezuma late March, 2012.
Summit County, Colorado, firefighters extinguish a small wildfire between Keystone and Montezuma late March, 2012. A new University of Utah study suggests that more drought and wildfires will worsen air pollution in the high country of the West, even spreading to pristine wilderness areas. @bberwyn photo.

Staff Report

Longer and hotter droughts and wildfires are polluting the once clear blue skies of the high country in the West, according to new research from the University of Utah.

The study, published this week in the journal Environmental Research Letters, found a link between the severity of drought in the Intermountain West and summertime air quality. Climate projections suggest that drought and wildfire risk will continue to increase in coming decades.

“If you take that into the future, we’re going to see significant hazing of the West,” said University of Utah atmospheric scientist Gannet Hallar. Continue reading “Droughts and fires affecting Western U.S. air quality”

EU science agency says 2016 was record-warm

Global temperature ratchets up another notch

copernicus_graphics_press-release_en-1Staff Report

Just a few days into the new year, European climate experts confirmed that 2016 is the warmest year on record since humans started tracking the climate. The analysis from  C3S, part of the EU’s Copernicus earth observation program, show that 2016’s global temperature was about 1.3 degrees Celsius higher than typical for the middle years of the 18th century. 2016 was close to 0.2 degrees Celsius warmer than 2015, which was previously the warmest year on record. Continue reading “EU science agency says 2016 was record-warm”

Wildlife: Jackals spreading into central Europe

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A golden jackal photographed in the Czech Republic. Photo courtesy Klára Pyšková.

Changing climate, shifting species

Staff Report

Climate change and other impacts from human activities are enabling jackals to spread into parts of Europe, scientists said after documenting the first living golden jackal in the Czech Republic. The mammal, native to northern Africa and southern Eurasia, was photographed by motion sensors cameras several times just 40 kilometers from Prague, according to a new study published in the open access journal ZooKeys.

“The habitat, where the golden jackal decided to settle, resembles the landscapes which these animals prefer in their natural distribution area, the Balkans – an open grass-shrubland surrounded by a forest. It is one of the warmest areas in the country, with mild winters.The observed animal was mostly active at dusk and dawn, with majority of the sightings occurring in the morning hours,” said researcher Klára Pyšková, who co-authored the paper with  a group of researchers from Charles University and Institute of Botany of the Czech Academy of Sciences, among them her supervisors Ivan Horáček and David Storch. Continue reading “Wildlife: Jackals spreading into central Europe”