An artist’s rendering of the Chicxulub impact crater on Mexico’s Yucatan Peninsula from an asteroid that slammed into the planet some 65 million years ago.

SPL/Science Source

The asteroid impact that ended the age of the dinosaurs also released so much carbon dioxide into the atmosphere that the planet warmed up by about 5 degrees Celsius — and the hot spell persisted for roughly 100,000 years.

That’s according to a new study in the journal Science that offers a cautionary tale about how Earth’s climate will react to the carbon dioxide that’s being pumped into the atmosphere now by the burning of fossil fuels.

Scientists have long wondered about the long-term environmental effects of the notorious Chicxulub impact that occurred about 65 million years ago, when a space rock more than 5 miles wide slammed into…