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Climate Change Is a ‘Game Changer’ When It Comes to Heatwaves, Say Experts

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All heatwaves today bear the unmistakable and measurable fingerprint of global warming, top experts on quantifying the impact of climate change on extreme weather said Wednesday.

Burning fossil fuels and destroying forests have released enough greenhouse gases into the atmosphere to also boost the frequency and intensity of many floods, droughts, wildfires, and tropical storms, they detailed in a state-of-science report .

“There is no doubt that climate change is a huge game changer when it comes to extreme heat,” Friederike Otto, a scientist at Imperial College London’s Grantham Institute, told AFP.

Extreme hot spells such as the heatwave that gripped South Asia in March and April are already the most deadly of extreme events, she added.

“Every heatwave in the world is now made stronger and more likely to happen because of human-caused climate change,” Otto and co-author Ben Clarke of the University of Oxford said in the report, presented as a briefing paper for the news media.

Evidence of global warming’s impact on extreme weather has been mounting for decades, but only recently has it been possible to answer the most obvious of questions: To what extent was a particular event caused by climate change?The most scientists could say before is that […]

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