Summer 2023 was the hottest in 2,000 years

Doyle Rice, writing in USA Today »

Based on an analysis of ancient tree rings that date back to the year 1, last summer was the hottest in the past 2,000 years, a new study released Tuesday suggests. Study authors described the warmth during the summer of 2023 across much of the Northern Hemisphere as “unparalleled.”

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Of even more concern, study authors note, is that the 2015 Paris Agreement to keep warming globally to 2.7 degrees “has already been superseded at this limited spatial scale.” The Paris Agreement seeks to keep warming below that level to stave off the worst impacts of human-caused climate change.

Last Updated on May 23, 2024