Weather.com - 3/12/13, Live Science Staff
Of the 10 million square miles of northern vegetated
lands, 34 to 41 percent showed increases in plant
growth (green and blue), 3 to 5 percent decreases in
plant growth (orange and red), and 51 to 62 percent
no change.
Tucker and a team of university and NASA scientists looked at 30 years' worth of satellite and land surface data on vegetation growth from 45 degrees north latitude to the Arctic Ocean. In this region, large patches of lush vegetation now stretch over an area about the size of the continental United States and resemble what was found 4 to 6 latitude degrees to the south in 1982, the researchers say.
For more details on this story click: Arctic