Media Bias on Global Warming?: How could that possibly be?
The summer sea ice is shrinking so much mostly because greenhouse warming is raising Arctic temperatures. This has direct effects: when the air is warmer, more ice melts. It also has indirect effects. Warm, salty water from the North Atlantic sliding below the cold, fresh upper layers of the Barents Sea may be one of them. Another could be that warmer air is often moister. Moist air traps more heat in summer. In winter it tends to create more clouds, which keeps the surface below warm. . . .Oh oh, the Christian Science Monitor mentions something that The Economist just happened to forget to mention.