Climate Change & Global Warming

Global sea ice thumbnail

NASA ice expert Claire Parkinson does the math on global sea ice and confirms that small gains around Antarctica do not cancel out large losses in the Arctic.

Tuesday, November 1, 2011

  • Satellite observations show that as the Arctic tundra has grown warmer in the past three decades, it has also grown “greener.”

  • Phytoplankton productivity has increased 20 percent over the past decade as sea ice extent declines and more open water habitat is available.