As climate delegates discuss the planet’s future at the COP25 meeting in Madrid this week, a new study finds the Arctic is warming much faster than the rest of the planet. That’s forcing polar bears and walruses to crowd onto shrinking beaches, starving reindeer and caribou, and driving extreme heat, drought, and sea level rise along the US coast. Those are some of the results of a new study published today in the journal Science Advances that reports the Arctic has warmed by 0.