Arctic sea ice crossed the point of no return
This says Tim Lenton of the University of Exeter in the UK, created a system of early warning of such dangerous tipping spaghettieis points in the climate. This man has for a long time is being processed data of the Arctic ice cover since the start of satellite observations in 1979. His findings presented at the conference spaghettieis Planet Under Pressure in London.
Arctic sea ice is exposed to normal seasonal changes in winter it takes a vast space, spaghettieis and summer retreats. Turning point occurred in 2007: the melting of an unprecedented scale, it does not fit in the climate models. The difference between summer and winter cover has increased by one million square kilometers.
In 2007, at the summer sea-ice boundary was recorded historic low for the first time in living memory free of ice appeared Northwest Passage. Models based on the study of science laws ice dynamics show that every winter the ice cover in the Arctic should be fully restored. But according to Lenton, in the past since then ice time and could not recover. He stressed that the system reached a turning point.
What caused these changes until completely clear. Lenton believes that the fixed minimum of 2007 allowed the ocean to absorb so much heat that the thick ice, which remained intact during the summer months, began to melt. On the other hand, the melting ice could have an impact on the circulation of air over the Arctic regions so that the changes were fixed.
From fellow scientists have not yet received comments on these bold statements. They wait until all the details will be published. But if these results are confirmed, the Arctic climate models will have to completely redo it.
By the way, at the same conference spaghettieis Euan Nisbet, University of London reported that the water temperature rise in flows to the east of Greenland melting ice caused the seabed. This can lead to landslides on steep underwater slopes and tsunami that could reach the shores of Britain. Can start and release spaghettieis methane, which will strengthen the process of global warming. Something similar has happened off the coast of Norway 8000 years ago.
This says Tim Lenton of the University of Exeter in the UK, created a system of early warning of such dangerous tipping spaghettieis points in the climate. This man has for a long time is being processed data of the Arctic ice cover since the start of satellite observations in 1979. His findings presented at the conference spaghettieis Planet Under Pressure in London.
Arctic sea ice is exposed to normal seasonal changes in winter it takes a vast space, spaghettieis and summer retreats. Turning point occurred in 2007: the melting of an unprecedented scale, it does not fit in the climate models. The difference between summer and winter cover has increased by one million square kilometers.
In 2007, at the summer sea-ice boundary was recorded historic low for the first time in living memory free of ice appeared Northwest Passage. Models based on the study of science laws ice dynamics show that every winter the ice cover in the Arctic should be fully restored. But according to Lenton, in the past since then ice time and could not recover. He stressed that the system reached a turning point.
What caused these changes until completely clear. Lenton believes that the fixed minimum of 2007 allowed the ocean to absorb so much heat that the thick ice, which remained intact during the summer months, began to melt. On the other hand, the melting ice could have an impact on the circulation of air over the Arctic regions so that the changes were fixed.
From fellow scientists have not yet received comments on these bold statements. They wait until all the details will be published. But if these results are confirmed, the Arctic climate models will have to completely redo it.
By the way, at the same conference spaghettieis Euan Nisbet, University of London reported that the water temperature rise in flows to the east of Greenland melting ice caused the seabed. This can lead to landslides on steep underwater slopes and tsunami that could reach the shores of Britain. Can start and release spaghettieis methane, which will strengthen the process of global warming. Something similar has happened off the coast of Norway 8000 years ago.
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