The loss of sea ice is exposing darker waters, which absorb more of the sun’s energy. It’s a devastating feedback loop with major consequences for the planet.
heard that the Arctic is warming more than twice as fast as the rest of the planet, in large part due to a gnarly feedback loop: As more sea ice melts, it exposes darker waters, which absorb more of the sun’s energy, further accelerating the melt. That’s wrong, as it turns out. Things are actually even worse.
That means that the scientific community and policymakers have been referring to figures that are far too low. “A lot of papers have been citing this figure of two times greater warming in the Arctic than the rest of the planet for a long time,” says climate scientist Lily Hahn, who studies the mechanisms of Arctic amplification at the University of Washington but wasn’t involved in the work. “So it's nice to finally update this using the most up-to-date observations.
France Dernières Nouvelles, France Actualités
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