Extreme Heat
Unusually hot summer days and nights have become more common across the contiguous United States over the last few decades.
Animum, own work. GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0-2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
Still image from video "Expanding on the Almanac." Video footage: Kurt Mann
Todd R. Emmerson. CC-BY-SA-3.0, http://creativecommons.org/licenses/by-sa/3.0/legalcode, via Wikimedia Commons
Imagery © 2014 Google, Data SIO, NOAA, U.S. Navy, NGA, GEBCO, Map data ©2014 Google
Unusually hot summer days and nights have become more common across the contiguous United States over the last few decades.
R. Wilborn, www.virtualterraintours.com. Used with permission