2020 was Europe's hottest year as Arctic wildfires raged - EU scientists Reuters 2 hrs ago By Kate Abnett BRUSSELS (Reuters) -Europe experienced its hottest year on record last year, while the Arctic suffered a summer of extreme wildfires partly due to low snow cover as climate change impacts intensified, the European Union’s observation service said on Thursday. As world leaders prepared to brandish their plans to fight climate change at a U.S.-led summit on Thursday, EU scientists issued a stark reminder that the impacts of a warmer world are already here. Europe's average annual temperature in 2020 was the highest on record and at least 0.4 degrees Celsius above the next five warmest years -- all of which took place in the last decade, the Copernicus Earth observation service said.