Peru's Quelccaya ice cap could meet its demise by mid-2050s

If warming trends continue, Quelccaya, which until recently was the world's largest tropical ice cap, will have reached a state of irreversible retreat by the mid-2050s, according to a new study led by University at Albany ...

Weather anomalies accelerate the melting of sea ice

In the winter of 2015/16, something happened that had never before been seen on this scale: at the end of December, temperatures rose above zero degrees Celsius for several days in parts of the Arctic. Temperatures of up ...

A look at the US cold snap from NASA infrared imagery

Imagery and an animation of infrared imagery from the AIRS instrument aboard NASA's Aqua satellite showed the movement of cold, Arctic air over the U.S. from Dec. 1 to Dec. 11. That frigid air mass is expected to affect states ...

Image: Impact of a solar storm, 28 October 2003

While this scene looks like the mesmerising result of shaking up a festive snow globe, it is in fact the disturbing effect of one of the most powerful solar storms ever recorded.

Humans adding less nitrogen to oceans than models predict

A new study finds that human activities are likely contributing far less nitrogen to the open ocean than many atmospheric models suggest. That's generally good news, but it also nullifies a potential side benefit to additional ...

Explaining crocodiles in Wyoming

Fifty million years ago, the Cowboy State was crawling with crocodiles. Fossil records show that crocs lounged in the shade of palm trees from southwestern Wyoming to southern Canada during the Cretaceous and Eocene.  Exactly ...

NASA measures frigid cloud top temps of the Arctic air outbreak

Some of the coldest air of the 2014-2015 winter season was settling over the eastern two-thirds of the U.S. on February 13, 2015. That Arctic air mass brought wind chills from below zero to the single numbers from the Midwest ...

Image: Giant filament seen on the sun

A dark, snaking line across the lower half of the sun in this Feb. 10, 2015 image from NASA's Solar Dynamics Observatory (SDO) shows a filament of solar material hovering above the sun's surface. SDO shows colder material ...

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