Arctic Report Card: update for 2012 (NOAA 2012)

National Oceanic and Atmospheric Administration (NOAA) (2012)

What's new in 2012? New records set for low snow extent and sea ice extent, and for widespread ice sheet melting, despite air temperatures - a key cause of melting - being unremarkable relative to the last decade. Multiple observations provide strong evidence of widespread, sustained change driving Arctic environmental system into new state.

Monograph