Newly documented population of polar bears in Southeast Greenland sheds light on the species’...

Scientists have documented a previously unknown subpopulation of polar bears living in Southeast Greenland. The polar bears survive with limited access to sea ice...

The mission and support of ICESat-2 data

By Agnieszka GautierEvery three months, the NASA Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) completes a comprehensive measurement of Earth’s surface, mapping our planet...

NSIDC DAAC makes altimetry data more accessible

By Agnieszka GautierLidar instruments have been mapping surface heights in Earth’s frozen regions—known as the cryosphere—since at least 1993, first on aircraft, and then...

Arctic sea ice at maximum extent for 2022

Arctic sea ice has likely reached its maximum extent for the year, at 14.88 million square kilometers (5.75 million square miles) on February 25,...

Rainfall in the Arctic will soon be more common than snowfall

Changes will happen decades earlier than previously thoughtMore rain than snow will fall in the Arctic and this transition will occur decades earlier than...

Mountain and polar groups seek urgent COP26 decision

Climate talks lacking knowledge of permanent global impacts from glacier and ice sheet lossMountain and polar groups at the twenty-sixth United Nations Climate Change Conference...

Arctic sea ice has reached minimum extent for 2021

Arctic sea ice has likely reached its minimum extent for the year, at 4.72 million square kilometers (1.82 million square miles) on September 16,...

NSIDC partners with local mural artist at Street Wise Boulder festival to illustrate Arctic...

Each September, the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder informs the public of the annual Arctic sea...

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Climate deniers, you're climate deniers – deal with it.

Myron Ebell bristles at the notion that he is often called a “climate denier.” “It’s meant to be offensive,” he said at an early February...

Coalition colleagues urge Malcolm Turnbull to head off energy crisis.

Prime minister told to adopt a domestic gas reservation policy to deal with forecast LNG shortages <!--><!--><!--><!--> A wind turbine nacelle at Capital Wind Farm in...

Addendum: Biomass enables the transition to a carbon-negative power system across western North America

Nature Climate Change 5, 230–234 (2015); published online 9 February 2015; addendum published after print 2 March 2017. The authors omitted to cite a paper32...

A lesson on warming, from an icy river.

By THE EDITORIAL BOARDApril 20, 2017In the wilds of the Canadian Yukon, nature has provided fresh evidence of the destructive power of humans, and a stark warning...

Why big animals can't take a little rain.

Melting from glaciers and permafrost was not kind to the large animals of the last Ice Age. The persistent moisture turned grasslands into peatlands and...