The likelihood that Earth briefly hits key warming threshold grows bigger and closer, UN forecasts
1 year, 10 months ago

The likelihood that Earth briefly hits key warming threshold grows bigger and closer, UN forecasts

Associated Press  

There’s a two-out-of-three chance that the world will temporarily hit a key warming limit within the next five years, the United Nations weather agency said Wednesday. Maybe it’ll be next year or the year after” that a year averages 1.5 degrees Celsius, said report lead author Leon Hermanson, a climate scientist at the United Kingdom’s Met Office. The temporary warming of this year’s expected El Nino — which starts with a warming of parts of the central Pacific Ocean and then sloshes across the globe — makes it “possible for us to see a single year exceeding 1.5 C a full decade before the long-term average,” said climate scientist Zeke Hausfather of the tech company Stripe and Berkeley Earth, who wasn’t part of the WMO report. The La Nina somewhat flattened the trend of human-caused warming so that the world hasn’t broken the annual temperature mark since 2016, during the last El Nino, a super-sized one, Hermanson said.

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