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NickB79

(19,233 posts)
Sat May 26, 2018, 10:22 AM May 2018

Asteroid that killed the dinosaurs caused massive global warming

https://www.newscientist.com/article/2170015-asteroid-that-killed-the-dinosaurs-caused-massive-global-warming/amp/

The asteroid impact that wiped out the dinosaurs caused temperatures to rise by 5°C. Earth stayed that hot for 100,000 years.

That’s much hotter than expected, which could mean we are underestimating how much the planet will warm in the next few centuries.

“The implication is that the amount of warming that we are likely to see is greater than current predictions,” says Ken MacLeod of the University of Missouri in Columbia.

The asteroid that ended the reign of the dinosaurs around 66 million years ago slammed into rocks rich in carbonates, releasing immense quantities of carbon dioxide into the atmosphere. It also triggered vast wildfires, releasing even more C02.
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