article_snippet.sent: D.C. The Earth experienced D.C. The Earth hottest month of March since record-keeping began in 1880.
article_snippet.sent: There's been no break from the globe's record heat -
article_snippet.sent: the first three months of 2015 have all set new high temperature marks.
article_snippet.sent: Last month's average temperature soared to 56.4°F (13.6°C), which is 1.5°F (0.85°C) above the average for the 20th century.
article_snippet.sent: It follows earlier announcements from US government scientists that 2014 was the hottest year in modern history. '