What exactly is a tundra?
wikipedia said:
In physical geography, tundra is a biome where the tree growth is hindered by low temperatures and short growing seasons.
pix:
http://2.bp.blogspot.com/_Joon5K2aA8Q/SxLyY8cGTYI/AAAAAAAAAF4/FGq7stgtPdY/s1600/tundra.jpg
http://farm3.static.flickr.com/2342/2270310712_e18ab99dca.jpg
http://4.bp.blogspot.com/_JZqFVRZZaWQ/SG5fhxoAJXI/AAAAAAAAArw/Q8ARVoeRoMc/s400/ANWR+4.jpg
http://www.alaska-in-pictures.com/data/media/10/arctic-tundra_494.jpg
edit :darn, shoulda just linked the article lol