A warming Arctic could cost the world trillions of dollars
New science warns that melting ice and permafrost could set off feedback loops that make climate change worse.
Scientists have long warned that climate change is likely to bring expensive impacts, from rising seas to stronger storms. And a new study comes with a hefty price tag.
A warming Arctic is shifting from white to dark as sea ice melts and land-covered snow retreats, and that means it can absorb even more of the sun’s heat. Plus, the Arctic’s vast permafrost area is thawing, releasing more heat-trapping carbon and methane. These climate-change-driven feedbacks in the Arctic are accelerating warming even faster and may add nearly $70 trillion to the overall costs of climate change—even if the world meets the Paris Agreement climate targets, a new study says.
However, if efforts can be made to keep climate change limited