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Blooming Algae Could Accelerate Arctic Warming

Blooming Algae Could Accelerate Arctic Warming

Scientists already know that receding sea ice allows solar energy to warm exposed water rather than reflect back into space, but blooms of algae could make matters even worse. By the end of the century, researchers say, the blooms could lead Arctic warming to increase by as much as 20 percent.… Read More

Scientists Turn to Drones For Closer Look at Sea Ice

Scientists Turn to Drones For Closer Look at Sea Ice

An oceanographer at Columbia University’s Lamont-Doherty Earth Observatory is calling on a 21st century technology to understand exactly how the floating ice that clogs the world’s northernmost seas every winter breaks up and melts.… Read More

Major Changes Loom in Arctic as U.S. Leads Council

Major Changes Loom in Arctic as U.S. Leads Council

Just 30 years ago, the Arctic was viewed as a frozen expanse of limited opportunity. But climate change is rapidly reshaping the region — it’s warming twice as fast as the rest of the planet — creating new opportunities and risks that are coming into global focus. “Without climate change, we wouldn’t really be talking about the Arctic in the first… Read More

Arctic Research Vessel Set Adrift to Study Sea Ice Decline

Arctic Research Vessel Set Adrift to Study Sea Ice Decline

A research vessel is adrift in the Arctic to study why sea ice is retreating faster than expected. Ice cover across the northern ocean fell to a new low last month, reaching just over 14.5 million sq kilometers (5.61 million square miles) at its winter peak, according to the National Snow and Ice Data Center, in Colorado. That was 130,000 sq… Read More

Thawing Permafrost Will ‘Seep, Not Explode’ CO2

Thawing Permafrost Will ‘Seep, Not Explode’ CO2

The Arctic holds more than a trillion tons of carbon, locked in the frozen soil known as permafrost. That’s more than twice as much carbon as there is in the atmosphere itself, according to a 2013 report from the National Academy of Sciences. And as the climate warms under its growing blanket of human-generated greenhouse gases, thawing permafrost … Read More

Arctic Sea Ice Hits Record Low Winter Peak

Arctic Sea Ice Hits Record Low Winter Peak

It’s official: When the sea ice that blankets the Arctic Ocean hit its peak it yearly peak on Feb. 25, and maximum area it achieved was a record low, the National Snow & Ice Data Center announced Thursday. Warm temperatures in parts of the polar regions kept sea ice levels depressed, and also contributed to the winter peak occurring much earlier… Read More

Arctic Sea Ice Dwindling Toward Record Winter Low

Arctic Sea Ice Dwindling Toward Record Winter Low

While balmy hints of spring melt piles of snow in the eastern U.S., the impending end of winter marks peak season for Arctic sea ice. But this year, that winter maximum area is currently on track to hit a record low since satellite records began in 1979. What that low-ice mark means for the spring and summer melting seasons is unclear, but the… Read More

Arctic Sea Ice Is Getting Thinner, Faster

Arctic Sea Ice Is Getting Thinner, Faster

While the steady disappearance of sea ice in the Arctic has been one of the hallmark effects of global warming, research shows it is not only covering less of the planet, but it’s also getting significantly thinner. That makes it more susceptible to melting, potentially altering local ecosystems, shipping routes and ocean and atmospheric patterns.… Read More

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Amazon Deforestation Recent deforestation in Brazil has been rapid, causing greenhouse gas emissions.

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