A black swan event is a situation so rare that few people would have imagined it was possible. In November 2016, researchers were caught off guard by just such an event: extremely low sea ice extents in both the Arctic and Antarctic.
Blocked for decades by an impassable dam, 11.2 miles of prime habitat are now open to endangered Caifornia coho salmon. Access to the upper stream elevations will make the salmon and steelhead trout that migrate into the Russian River watershed to spawn much more resilient to temperature and drought extremes.
The author of the glacier chapter of the 2015 State of the Climate report and his daughter talk about how family connections brought them together scientifically, and how science keeps bringing their family together.
Every year hundreds of scientists from scores of countries team up to give the Earth's climate a comprehensive physical. Edited by NOAA scientists and published by the American Meteorological Society, the State of the Climate in 2015 draws on tens of thousands of observations of everything from forest fires to fish migration to catalog climate variability and change.
If you had to pick your Fourth of July picnic location based solely on past weather, where does the climate record say you'll have the least chance of rain? Our interactive map shows historic odds of rain on your parade.
Increasing air and sea surface temperatures, decreasing sea ice extent and Greenland ice sheet mass, and changing behavior of fish and walrus are among key observations released today in the Arctic Report Card 2015.