Melting sea ice in the Arctic may cause more rapid melting of the permanently frozen ground or permafrost. That will increase green house gas emissions ? but some of the emissions may be countered by the faster growth of vegetation in the region.
Today’s Geo Quiz sent us in search of a European country whose borders are shifting as a result of climate change. The answer is Italy. Anchor Lisa Mullins explains why.
For today’s Geo Quiz, we head to the frozen north. We have heard a lot about the problem of melting ice as climate change warms up the Arctic. But scientists are also worried about something else that is melting up there — permafrost.