La ridotta copertura di ghiaccio sul mare arctico ( anche per causa del anno record 2007) ha ridotto l albedo, e il mare ha assorbito piu radiazione durante l estate e fino adesso, aumentando notelvolmente la temperatura media dell aria

The now published annual report by the american National Oceanic and Atmospheric Administration (NOAA) claims that the average air-temperature this autumn in the Arctic is 5° higher then the long-term average. The vanishing ice cover provides less reflection and isolation, and the darker seawater adsorbs more radiation. The actually measured ice cover is lesser by 34% to the average from 1979-2003, only 2007 showed a higher value, with 43%.

Arctic Report Card 2008