Global warming dwarfs climate variations of past 2,000 years - study
LONDON (Reuters) - Earth’s rapid warming in the late 20th century was far more widespread than any temperature variations during the previous 2,000 years, according to a study published on Wednesday that shows how profoundly humans have altered the climate.
The study crunched data covering two millennia from almost 700 sources ranging from tree rings and coral to sediments and ice cores.
Published in the journal Nature, it found that previous major climate events were confined to certain areas, and not global phenomena as scientists had previously assumed, said one of its co-authors, Columbia University climate scientist Nathan Steiger.
“The main takeaway is that climate variability in the contemporary period is very different than what’s happened in the past 2,000 years,” he said.
https://www.reuters.com/article/us-climatechange-study/global-warming-dwarfs-climate-variations-of-past-2000-years-study-idUSKCN1UJ2DC
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