2014 topped both 2005 & 2010 as the hottest since record keeping began, continuing the trend that the top 10 years have all occurred since 1998.
Transportation accounts for 28 percent of Americans’ overall greenhouse gas emissions. Here's a look at how various modes stack up.
As the U.S. and globe have warmed, lake-effect snowfall amounts have been on the rise.
A look at how El Niño influences global weather patterns.
Even with the big swings of Halloween weather from year to year, Octobers are warming across the U.S.
All regions of the continental U.S. have seen the frost-free season, defined as the stretch between the last below-32°F reading in the spring and the first in the fall, grow longer.
A graphical look at the top indicators of a warming world.
September marks the end of winter when the sea ice that surrounds Antarctica swells to its maximum extent.