NOAA Climate.gov (@NOAAClimate) tweeted at 0:58 PM on Mon, Jul 21, 2014: 2013 #StateofClimate: #Arctic sea ice extent at Sept. minimum is declining at 13.7% per decade.http:/... t.co/lfk6F0r5jr

NOAA Climate.gov (@NOAAClimate) tweeted at 0:58 PM on Mon, Jul 21, 2014: 2013 #StateofClimate: #Arctic sea ice extent at Sept. minimum is declining at 13.7% per decade.http:/... t.co/lfk6F0r5jr