U.S. scientists officially declare 2016 the hottest year on record. That makes three in a row. (The Washington Post)

NASA expressed 'greater than 95 percent certainty' in the conclusion....
https://www.washingtonpost.com/news/energy-environment/wp/2017/01/18/u-s-scientists-officially-declare-2016-the-hottest-year-on-record-that-makes-three-in-a-row/?utm_term=.c137e667d7cc