which regions does melting permafrost affect
Melting permafrost creates yet another positive feedback loop in the warming climate system: release of the greenhouse gases CO 2 and methane. Methane is a highly potent greenhouse gas that is five times stronger than CO 2.rctic sea ice is important because it reflects sunlight, keeping the polar regions cool and thereby moderating global climate. Watch the video  Arctic Sea Ice  as an introduction to the topic of Arctic ice and global climate change.