By John P. Reisman at 11 May, 2010, 3:11 am
We are losing the Arctic ice
Most certainly within 30 years, and possibly, or even quite likely, within 10 years. This is expected to increase the Northern/Polar amplification effect.
Global warming has many effects in the climate system. Loss of the Arctic ice will effect atmospheric circulation patterns. This will impact existing infrastructure regarding food production and have a cascading effect in other areas important to human society.