Arctic Ice-Free By 2040

“The Arctic may be close to a tipping point that sees all-year-round ice disappear very rapidly in the next few decades, US scientists have warned.

The latest data presented at the American Geophysical Union Fall Meeting suggests the ice is no longer showing a robust recovery from the summer melt.

Last month, the sea that was frozen covered an area that was two million sq km less than the historical average.

“That’s an area the size of Alaska,” said leading ice expert Mark Serreze.
“We’re no longer recovering well in autumn anymore. The ice pack may now be starting to get preconditioned, perhaps to show very rapid losses in the near future,” the University of Colorado researcher added.

The sea ice reached its minimum extent this year on 14 September, making 2006 the fourth lowest on record in 29 years of satellite record-keeping and just shy of the all time minimum of 2005.

‘Feedback loop’

Dr Serreze’s concern was underlined by new computer modelling which concludes that the Arctic may be free of all summer ice by as early as 2040.”

December 2006