Greening of the Arctic as Trees March North

http://www.earthtimes.org/climate/greening-arctic-trees-march-north/389/

Temperatures are rising every where and that means melting of ice. But it also means that the tundra is disappearing in the far north. More trees are spreading into the arctic tundra regions. Scientist say by the end of the century we could see dramatic increases in the temperature in the arctic. It could possibly be a seven to nine degree increase. This means that the ice that spreads over greenland could melt away exposing the tundra beneath. It all depends on the greenhouse gas's over the next 70 to 80 years. It worrys me to have to hear about this because it disrupts habitats and ecosystems. CO2 gases need to be contained. They are going to only make things worse.