August 2007: 450.000 years ago Greenlands South was lushly wooded. This is the result of the discovery of DNA, which two Danish scientists found beneath a layer of two kilometers ice. The DNA could be attached to different coniferous trees and insects. If the dating is correct the greenlandic sheet of ice was obviously not melt away completely during the last warm period 125000 years ago and so could be more resistant to global warming today than estimated.