When the winds are right, dust from the deserts of the U.S. Southwest blows onto the snow-capped Rocky Mountains. How do dirty snowfields contribute to the loss of more than 250 billion gallons of water in the Colorado River?
In the summer of 2009, sea ice receded to its third-smallest area in recorded history. The reduced sea ice cover in the Arctic allowed an international group of scientists to study areas of the ocean that they have never been able to reach before.
In July, 2012, the world witnessed a shocking event when widespread melting occurred over the surface of 97% of the Greenland Ice Sheet. According to ice core records, the last time such widespread melting occurred was in 1889. What caused such widespread melt? Was it just the warm temperatures, or is it a more complicated situation?
In response to the President's Executive Order 13653, a NOAA-led U.S. federal agency partnership released the U.S. Climate Resilience Toolkit to provide tools, information, & scientific expertise to help communities & businesses build resilience to climate-related impacts & extreme events.
This new Synthesis Report from the IPCC summarizes the contents of 5 studies released over the past year. These studies confirm that climate change caused by human activities is having impacts on ecosystems and human well-being across the U.S. and around the world.