claim: "the 12 hottest years on record have come in the last 15 years."
author: barack obama
evidence_1: feb 2, 2015 ... world metereological organisation's analysis narrowly places 2014 as the hottest  recorded since 1850, as global warming continues.
evidence_2: jan 20, 2016 ... the top 10 hottest years on record have all been since 1998. ... was the hottest  year on record (since 1880). the previous hottest year was 2014, and the last  time back-to-back hottest years occurred were 2006-07. ... of the hottest years on  record, 15 out of 17 have come since 2000. by contrast, more than ...
evidence_3: this is not only the highest calendar year temperature, but also the highest  temperature for any 12-month period on record. the global temperatures in 2015  were strongly ... to date, including 2015, 15 of the 16 warmest years on record  have occurred during the 21st century. 1998 is currently tied with 2009 as the  sixth ...
evidence_4: the instrumental temperature record provides the temperature of earth's climate  system from the historical network of in situ measurements of surface air  temperatures and ocean surface temperatures. data are collected at thousands  of meteorological stations, buoys and ships around the globe. the longest- running ...
evidence_5: jan 18, 2017 ... most of the warming occurred in the past 35 years, with 16 of the 17 warmest  years on record occurring since 2001. not only was 2016 the warmest year on  record, but eight of the 12 months that make up the year – from january through  september, with the exception of june – were the warmest on record ...