The intensity of extreme drought and rainfall has 'sharply' increased over the past 20 years, according to a study published Monday in the journal Nature Water.
"I was surprised to see how well correlated the global intensity was with global mean temperatures," said Matthew Rodell, study author and deputy director of Earth sciences for hydrosphere, biosphere, and geophysics at NASA Goddard Space Flight Center.
That showed the most extreme rains keep happening in sub-Saharan Africa, at least through December 2021, the end of the data. The rainfall extremes also took place in central and eastern North America from 2018-2021, and Australia during 2011-2012. View of the dam at Canelón Grande reservoir amid drought conditions on March 13, 2023 in Canelones, Uruguay. A warmer atmosphere increases the rate at which water evaporates during dry periods. It also holds more water vapor, which fuels heavy rainfall events.
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