So it is true: it is hot air!

Or perhaps cold air! :>

''"The National Snow and Ice Data Center (NSIDC) has been at the forefront of predicting doom in the arctic as ice melts due to global warming. In May, 2008 they went so far as to predict that the North Pole would be ice-free during the 2008 'melt season,' leading to a lively Slashdot discussion. Today, however, they say that they have been the victims of 'sensor drift' that led to an underestimation of Arctic ice extent by as much as 500,000 square kilometers.'' [source]

And they were forced to say something because they made a prediction for a near future. How can one trusts prediction to 100 years?