Summer 2023 was hottest in 2,000 years in ‘dramatic’ global warming, study shows

The analysis in the context of the sweep of history shows how “dramatic” recent global warming is, one of the researchers said

A pedal boat is tied to a dock in a dried part of the Sau reservoir, about 100 km (62 miles) north of Barcelona, Spain, Tuesday, April 18, 2023. (Picture: AP Photo/Emilio Morenatti)

Summer 2023 was the hottest in the northern hemisphere over the past 2,000 years, researchers have found.

An assessment by scientists comparing last year to the past two millennia using tree ring data found that the summer months of June, July and August were at least 0.5C hotter than the extremes of a naturally-varying climate.