The numbers are in. The hottest seven years in recorded history are: 2020, 2019, 2018, 2017, 2016, 2015 and 2014.
원문출처 : https://www.cnn.com/2021/01/15/us/weir-climate-hottest-2020/index.html
원문출처 : https://www.cnn.com/2021/01/15/us/weir-climate-hottest-2020/index.html