Much like with any science, experts don’t have all the answers to every question when it comes to climate science. While there are plenty of unknowns, there is a mountain of information we do know.
13 of the 14 hottest years have happened in the 21st Century.
The other was in 1998, according to a report by the World Meteorological Organization published this year. The report notes the six lowest Arctic “sea-ice extents” have occurred in the last 7 years.
Michel Jarraud, the WMO’s secretary-general emphasized the meaning of the data they collected for 2013:
“Many of the extreme events of 2013 were consistent with what we would expect as a result of human-induced climate change. We saw heavier precipitation, more intense heat, and more damage from storm surges and coastal flooding as a result of sea level rise – as typhoon Haiyan so tragically demonstrated in the Philippines.”