
Arctic Report Card 2018: effects of persistent Arctic warming continue to mount
Continued warming of the Arctic atmosphere and ocean are driving broad change in the environmental system in predicted and, also, unexpected ways. New emerging threats are taking form and highlighting the level of uncertainty in the breadth of environmental change that is to come. A report tracking sea ice, snow cover, air temperature, ocean temperature, the Greenland ice sheet, vegetation and ecosystem changes during the 2018 calendar year.