This is one report that we must listen to. He is saying this directly in the face of what has been a very cold winter that has certainly chilled my enthusiasm for an ice free 2012 or 2013. Recall that I said exactly the same thing as the 2007 accelerated melt unfolded. My argument was a response to the expected acceleration of the ice loss and the recognition that the decades long linear model then championed was wrong headed.
The real test will be this year’s melt. Again we will be watching closely and my expectations are very low. We will now see.
The losses he is recognizing is attributable to the last of the melt phase of 2007. The reversal that took place right after should have jump started fresh sea ice accumulation this winter in particular. We are getting our assess kicked and it should be apparent by a rise in the long term ice this summer. A few summers of that and we will be right back to where we started.
Of course, sunspot cycle 24 may well kick in with a vengeance in 2010 and the global response may be quick enough to put it all back on track.
Arctic Summer Ice Could Vanish By 2013: Expert
http://www.independent-bangladesh.com/environment-news/arctic-summer-ice-could-vanish-by-2013-expert.html
Sunday, 08 March 2009
The Arctic is warming up so quickly that the region's sea ice cover in summer could vanish as early as 2013, decades earlier than some had predicted, a leading polar expert said on Thursday.
The real test will be this year’s melt. Again we will be watching closely and my expectations are very low. We will now see.
The losses he is recognizing is attributable to the last of the melt phase of 2007. The reversal that took place right after should have jump started fresh sea ice accumulation this winter in particular. We are getting our assess kicked and it should be apparent by a rise in the long term ice this summer. A few summers of that and we will be right back to where we started.
Of course, sunspot cycle 24 may well kick in with a vengeance in 2010 and the global response may be quick enough to put it all back on track.
Arctic Summer Ice Could Vanish By 2013: Expert
http://www.independent-bangladesh.com/environment-news/arctic-summer-ice-could-vanish-by-2013-expert.html
Sunday, 08 March 2009
The Arctic is warming up so quickly that the region's sea ice cover in summer could vanish as early as 2013, decades earlier than some had predicted, a leading polar expert said on Thursday.
Warwick Vincent, director of the Center for Northern Studies at Laval University in Quebec, said recent data on the ice cover "appear to be tracking the most pessimistic of the models", which call for an ice free summer in 2013.
The year "2013 is starting to look as though it is a lot more reasonable as a prediction. But each year we've been wrong -- each year we're finding that it's a little bit faster than expected," he told Reuters.
The Arctic is warming at twice the rate of the rest of the world and the sea ice cover shrank to a record low in 2007 before growing slightly in 2008.
In 2004 a major international panel forecast the cover could vanish by 2100. Last December, some experts said the summer ice could go in the next 10 or 20 years.
If the ice cover disappears, it could have major consequences. Shipping companies are already musing about short cuts through the Arctic, which also contains enormous reserves of oil and natural gas.
Vincent's scientific team has spent the last 10 summers on Ward Hunt Island, a remote spot some 2,500 miles northwest of Ottawa.
"I was astounded as to how fast the changes are taking place. The extent of open water is something that we haven't experienced in the 10 years that I've been working up there," he said after making a presentation in the Canadian Parliament.
"We're losing, irreversibly, major features of the Canadian ice scape and that suggests that these more pessimistic models are really much closer to reality."
In 2008 the maximum summer temperature on Ward Hunt hit 20 degrees Celsius (68 degrees Fahrenheit) compared to the usual 5 degrees. Last summer alone the five ice shelves along Ellesmere Island in Canada's Far North, which are more than 4,000 years old, shrunk by 23 percent.
Vincent told Reuters last September that it was clear some of the damage would be permanent and that the warming in the Arctic was a sign of what the rest of the world could expect. He struck a similarly gloomy note in his presentation.
"Some of this is unstoppable. We're in a train of events at the moment where there are changes taking place that we are unable to reverse, the loss of these ice shelves, for example," he said.
"But what we can do is slow down this process and we have to slow down this process because we need to buy more time. We simply don't have the technologies as a civilization to deal with this level of instability that is ahead of us."
