Human activity has probably had an impact on the world's risk of drought since the start of the 20th century, according to a new study, which also predicts that droughts related to climate change will get much worse https://t.co/Ibd8z1bpzF

Human activity has probably had an impact on the world's risk of drought since the start of the 20th century, according to a new study, which also predicts that droughts related to climate change will get much worse https://t.co/Ibd8z1bpzF (via Twitter http://twitter.com/CNN/status/1123845381190766592)