2017 was the warmest year on record without an El Niño
Anomaly, °C relative to 1850–1900
1.2
0.8
0.4
Both 2015 and 2016 were boosted by an El Niño
0
2000
2004
2008
2012
2016
1.2
0.8
0.4
Both 2015 and 2016 were boosted by an El Niño
0
2000
2004
2008
2012
2016