Pinpointing the role of climate change in every storm is impossible – and a luxury most countries can't afford

By Friederike Otto, Associate Director, Environmental Change Institute, University of Oxford
Luke Harrington, Senior Research Fellow in Climate Science, Te Herenga Waka — Victoria University of Wellington

Tropical Storm Ida recently left a path of devastation across the US, capping a summer beset by wildfires, heatwaves and floods which broke records around the world. The inevitable question after each of these extreme weather events is the same: to what extent did climate change make it worse?

This is normally where the science of extreme event attribution steps in and identifies whether and to what extent human-caused climate change altered the likelihood and intensity of the event. Event…

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