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
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.
This could come at a great cost. Each drought costs the United States about $9.5 billion, according to government statistics. It is the second most costly weather disaster, behind tropical cyclones. Droughts can drive up the cost of food, threaten drinking water, increase the risk of wildfires, cause mass migrations and even hurt people's health.
"This research adds to the body of evidence suggesting that climate change, driven by increased emissions of carbon dioxide and other greenhouse gases, is likely to increase the frequency and severity of droughts," Quiggin, who was not involved in the new research, said in a statement to the Australian Science Media Centre."Without a radical change in both climate policy and water management, things will only get worse.
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