The six hottest years have all occurred since 2010 and 17 of the 18 hottest years on record have occurred since 2001.
Scientists believe if that if we are to avoid exceeding that limit, carbon emissions would need to be significantly reduced starting immediately.
The slight downturn in temperatures this year can be partially explained by the presence of La Niña, which began in late 2016 and lasted into 2017 and returned late in the year — whereas a robust El Niño was in place during portions of 2015 and 2016.
El Niño is characterized by a warming of the surface waters in the tropical Pacific Ocean — which tends to drive up global temperatures. Therefore years containing El Niños tend to be warmer globally than other years.
Source : http://rss.cnn.com/~r/rss/edition_world/~3/V2iC5bU_is0/index.html
Publish Date : 18 January 2018 | 6:19 pm