Climate change: The Arctic is warming nearly four times faster than the rest of the world
A paper reports that the Arctic is warming faster than the global average than previously thought.Communications Earth & Environmentwill be published inThis accelerated Arctic warming suggests that the Arctic is more sensitive to global warming than currently estimated.
Previous studies have reported that the Arctic is warming, on average, two to three times faster than the rest of the world.This phenomenon is called "Arctic amplification".
Mika Rantanen and colleagues analyze observational data from the Arctic from 1979 to 2021 and present an estimate of a decade-long temperature increase of 10°C over most of the Arctic Ocean during this period. did.This was at least four times the global average temperature increase.Meanwhile, the Eurasian sector of the Arctic Ocean (near Svalbard and Novaya Zemlya) was found to be warming at a rate of 0.75°C per decade, seven times faster than the rest of the world. Rantanen et al. present the view that Arctic amplification is intensifying over time due to ongoing sea ice loss.
Rantanen et al. also note that climate model projections may have generally underestimated Arctic amplification from 1979 to 2021. It is proposed to carry out a detailed study on the reflection of the mechanism of climate change in climate models.
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Reprinted from: "Climate change: The Arctic is warming almost four times faster than the rest of the world'
