丹麥氣象研究所 - 2018年北極地區的日平均氣溫

丹麥氣象研究所 - 2018年北極地區的日平均氣溫
Danish Meteorological Institute - Daily Mean Temperatures in the Arctic 2018

幾個月前超越攝氏零度時曾經有些漣漪
There were some ripples several months ago when it passed above 0 degree Celcius