Dinosaur-killing asteroid impact may have cooled Earth’s climate more than previously thought
The Chicxulub asteroid impact that wiped out the dinosaurs likely released far more climate-altering sulfur gas into the atmosphere than originally thought, according to new research.
A new study makes a more refined estimate of how much sulfur and carbon dioxide gas were ejected into Earth’s atmosphere from vaporized rocks immediately after the Chicxulub event. The study’s authors estimate more than three times as much sulfur may have entered the air compared to what previous models assumed, implying the ensuing period of cool weather may have been colder than previously thought.
The new study lends support to the hypothesis that the impact played a significant role in the Cretaceous-Paleogene extinction event that eradicated nearly three-quarters of Earth’s plant and animal species…More
- Article Category
- Research Letters
Quantifying the Release of Climate‐Active Gases by Large Meteorite Impacts With a Case Study of Chicxulub
- First Published:
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- | DOI:
Eos.org: Earth & Space Science News
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