Climate Change

Modeling the Arctic climate

In February, polar climate researchers gathered at the National Center for Atmospheric Research in Boulder, Colorado to discuss the newest updates to models of...

Sea ice down under: Antarctic ice and climate

The sea ice cover surrounding the continent of Antarctica is on average thinner than Arctic sea ice, and more...

What’s in a number? Arctic sea ice and record lows

Arctic sea ice extent for September, 2011 was the second-lowest in the satellite record. However, other data...

Greenland’s glaciers and the Arctic climate

These before-and-after photographs show Petermann Glacier in July 2009, before the calving event, and again in...

Climate change or variability: What rules Arctic sea ice?

This photo, taken during the NASA ICESCAPE mission in summer 2011, shows melt ponds on the surface of...

When will the Arctic lose its sea ice?

Scientists expect the Arctic to lose most of its summer ice cover by the end of this...

Arctic sea ice and U.S. weather

People sometimes wonder if the weather they are experiencing locally, such as the heavy snow that fell in...

Arctic sea ice and the tipping point

A lead or large crack in the ice opens up in melting summer sea ice. A seasonally ice-free Arctic is likely some...

Is dirty air adding to climate change?

Bright white sea ice reflects light and keeps the Arctic cool. Soot darkens the ice surface and can speed melt...

Pages

Subscribe to RSS - Climate Change