Date of prediction: 2007-12-12 (posted 2009-03-01)

»Their latest modelling studies indicate northern polar waters could be ice-free in summers within just 5-6 years. (…) “Our projection of 2013 for the removal of ice in summer is not accounting for the last two minima, in 2005 and 2007,” the researcher from the Naval Postgraduate School, Monterey, California, explained to the BBC. “So given that fact, you can argue that may be our projection of 2013 is already too conservative.”«

(BBC: Arctic summers ice-free ‘by 2013’)

Date of prediction: 2008-08-10

»Ice at the North Pole melted at an unprecedented rate last week, with leading scientists warning that the Arctic could be ice-free in summer by 2013.

The Observer: Meltdown in the Arctic is speeding up)