The global average surface temperature in 2015 broke all previous records by a strikingly wide margin, according to the United Nations World Meteorological Organization (WMO), which announced today that for the first time on record, temperatures were about 1 degree Celsius above the pre-industrial era.
“An exceptionally strong El Niño and global warming caused by greenhouse gases joined forces with dramatic effect on the climate system in 2015,” said WMO Secretary-General Petteri Taalas in a press release.
“The power of El Niño will fade in the coming months but the impacts of human-induced climate change will be with us for many decades. We have reached for the first time the threshold of 1 degree Celsius above pre-industrial temperatures. It is a sobering moment in the history of our planet,” he added.
WMO combines three internationally-renowned observational datasets with those from sophisticated reanalysis systems, allowing it to provide “the most authoritative international reference source.” Read more.