The Arctic is turning increasingly foggy, driven by climate change. A recent study looked at Arctic weather records from 1979 to 2018 and found the seas have been growing foggier, especially near newly open areas of water.
The disappearance of ice changes the moisture content in the very lowest part of the atmosphere and this leaves a narrow layer of moist air at the sea surface: with so much extra water vapour at the surface, this leaves vast tracts of iceless ocean that become extremely prone to fog.
