Six years ago, climate experts announced the end of multi-year ice in the Arctic
Multiyear Arctic ice is effectively gone: expert
By David Ljunggren
OTTAWA | Thu Oct 29, 2009 12:01pm EDT
(Reuters) – The multiyear ice covering the Arctic Ocean has effectively vanished, a startling development that will make it easier to open up polar shipping routes, an Arctic expert said on Thursday.
Vast sheets of impenetrable multiyear ice, which can reach up to 80 meters (260 feet) thick, have for centuries blocked the path of ships seeking a quick short cut through the fabled Northwest Passage from the Atlantic to the Pacific. They also ruled out the idea of sailing across the top of the world.
But David Barber, Canada’s Research Chair in Arctic System Science at the University of Manitoba, said the ice was melting at an extraordinarily fast rate.
“We are almost out of multiyear sea ice in the northern hemisphere,” he said in a presentation in Parliament.
Multi-year ice now covers about half of the Arctic Basin