[https://amp.cnn.com/cnn/2021/03/23/weather/climate-change-hotter-summers-trnd/index.html?__twitter_impression=true](https://amp.cnn.com/cnn/2021/03/23/weather/climate-change-hotter-summers-trnd/index.html?__twitter_impression=true) >"Summer weather could grow to half a year in length by the end of this century if no mitigation efforts are done on climate change, according to a new study. In about the past 60 years, summer has increased by 17 days on average across the globe."