Per NASA.
NASA ranked 2017 as the second-warmest year, after 2016. Scientists at the National Oceanic and Atmospheric Administration, who use a different analytical method, ranked it third, behind 2016 and 2015. Though 2015 was not technically an El Niño year, the phenomenon contributed to heat records that year and in 2016.
By both analyses, 17 of the 18 warmest years since modern record keeping began in 1880 have occurred since 2001. Overall, fueled by emissions of carbon dioxide and other greenhouse gases, temperatures have increased more than 1 degree Celsius (1.8 degrees Fahrenheit) since the late 19th century.
https://www.nytimes.com/interactive...180118&nl=breaking-news&nlid=57116766&ref=cta
NASA ranked 2017 as the second-warmest year, after 2016. Scientists at the National Oceanic and Atmospheric Administration, who use a different analytical method, ranked it third, behind 2016 and 2015. Though 2015 was not technically an El Niño year, the phenomenon contributed to heat records that year and in 2016.
By both analyses, 17 of the 18 warmest years since modern record keeping began in 1880 have occurred since 2001. Overall, fueled by emissions of carbon dioxide and other greenhouse gases, temperatures have increased more than 1 degree Celsius (1.8 degrees Fahrenheit) since the late 19th century.
https://www.nytimes.com/interactive...180118&nl=breaking-news&nlid=57116766&ref=cta