The study found that the Arctic is warming at a rate three times that of global models

Global warming is a pervasive problem with large-scale initiatives to reduce emissions and mitigate the International Panel on Climate Change's worst-case scenario predictions of 3.2°C of warming by 2100 (compared to pre-industrial levels). Current measurements show a warming of 1.1°C on Earth, but the polar regions are experiencing increased surface warming compared to the rest of the planet. (Hannah Bird, more at Phys.org)