Multiple scientific reports, including from NASA, said that 2020 effectively tied 2016 as the hottest year ever recorded (NYT). Scientists warned that the world could soon see the first year that is at least 1.5°C (2.7°F) above preindustrial levels; a goal of the 2015 Paris Agreement on climate change is to limit warming to 1.5°C.
The high temperatures had sweeping consequences (WaPo) around the world: in the United States, California suffered some of its worst wildfires ever; Russia’s Siberia saw temperatures more than 10°F above average; and the Atlantic hurricane season was the busiest on record, among other catastrophes. Disasters, worsened by climate change, caused
$210 billion in damage (E&E News) worldwide in 2020, according to global reinsurer Munich Re. And in the United States, there were twenty-two disasters that each caused at least $1 billion in damage last year.