As humans warm the planet, the once reliably frigid and frozen Arctic is becoming wetter and stormier, with shifts in its climate and seasons that are forcing local communities, wildlife and ecosystems to adapt, scientists said.
As humans warm the planet, the once reliably frigid and frozen Arctic is becoming wetter and stormier, with shifts in its climate and seasons that are forcing local communities, wildlife and ecosystems to adapt, scientists said Tuesday in an annual assessment of the region.
Temperatures in the Arctic Circle have been rising much more quickly than those in the rest of the planet, transforming the region’s climate into one defined less by sea ice, snow and permafrost and more by open water, rain and green landscapes. Warming at the top of the Earth raises sea levels worldwide, changes the way heat and water circulate in the oceans, and might even influence extreme weather events like heat waves and rainstorms, scientists say. But Arctic communities feel the impacts first.
Instead, scientists have begun combining direct measurements with sophisticated computer modeling to get a fuller picture. These methods have given them confidence to say that precipitation levels have increased significantly in the Arctic since the mid-20th century. This year was the region’s third-wettest since 1950, the report card said.
Indicators of sea ice rebounded this year after near-record-lows in 2021, but they were still below long-term averages, the assessment found. March is typically when the ice is at its greatest extent each year, September its lowest. At both points this year, ice levels were among the lowest since satellites have been making reliable measurements.
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