Comentário a esta nota do Real Climate:
Has anyone seen the uni-bremen arctic sea ice extent graph? Looks to me as though we are well on track to post another record september summer low. While the 2011 line was scraping the bottom as the lowest maximum on record it is now falling more rapidly than i have ever seen as you would expect with a rapidly warming arctic ocean under the fragile sea ice…if something miraculous doesn’t happen from now to september it looks very much as though we will smash the benchmark 2007 summer low.
At this point i might remind you all that this is not happening in geological time..rather this disaster is happening on virtually a year by year basis. Very soon..we will have no more permament summer sea ice left and the winter ice sheet will have shrunk to a cataclysmic low. We shall see firsthand the vital importance the arctic icecap has on world climate..for all those remaining sceptics out there with their heads firmly wedged in the sand bucket of ignorance. Those graphs show to me that we have gone way beyond the tipping points regarning ice albedo..from now on and for at least the last 40 odd years we have created an environment juggernaut of unstoppable climate change that is not going to be reversable for many many centuries to come.