Astronomers are particularly worried about the asteroid Bennu, which has a one in 2,700 chance of impacting Earth in 2182. A new supercomputer simulation demonstrated that such an impact could cause significant global climate changes, including a two-year 'impact winter.' This would result in temperatures dropping by 4˚C and drastically reduced rainfall, especially in North America, where crop production could be severely affected. Lead author Dr. Lan Dai emphasized that this impact would greatly threaten global food security, although it may not lead to a mass extinction like the Chicxulub asteroid did.
Researchers found that if Bennu were to impact Earth, it would cause a massive blast and subsequent climate changes, temporarily disrupting global food security.
Lead author Dr Lan Dai states: 'This would likely cause massive disruptions in global food security,' highlighting the profound impact on agriculture and climate.
Asteroids like Bennu, though rare, could create similar global climate disruptions as seen with the Chicxulub event, affecting climate patterns significantly.
The study predicts that an impact would inject millions of tonnes of dust into the atmosphere, causing temperatures to drop significantly and rainy seasons to diminish.
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