Posted by: Dr Churchill | September 18, 2012

This is how we spell COLLAPSE: Arctic Sea Ice

Arctic Sea ice shrinks to record low levels and Prof Peter Wadhams warns a ‘global disaster’ is now unfolding…

Prof Peter Wadhams calls for “urgent” consideration of new ideas to reduce global temperatures.
One of the world’s leading ice experts has predicted the complete & final collapse of Arctic sea ice during the summer months within three to four years.

In what he calls a “global disaster” now unfolding in northern latitudes as the sea area that freezes and melts each year shrinks to its lowest extent ever recorded, Prof Peter Wadhams of Cambridge University calls for “urgent” consideration of new ideas to reduce global temperatures.

He says: “Climate change is no longer something we can aim to do something about in a few decades’ time, and that we must not only urgently reduce CO2 emissions but must urgently examine other ways of slowing global warming, such as the various geoengineering ideas that have been put forward.”

These include reflecting the sun’s rays back into space, making clouds whiter and seeding the ocean with minerals to absorb more CO2.

Dr Peter Wadhams, has spent many years collecting ice thickness data from submarines passing below the arctic ocean. He predicted the imminent break-up of sea ice in summer months in 2007, when the previous lowest extent of 4.17 million square kilometres was set. This year, it has unexpectedly plunged a further 500,000 sq km to less than 3.5m sq km. “I have been predicting [the collapse of sea ice in summer months] for many years. The main cause is simply global warming: as the climate has warmed there has been less ice growth during the winter and more ice melt during the summer.

“At first this didn’t [get] noticed; the summer ice limits slowly shrank back, at a rate which suggested that the ice would last another 50 years or so. But in the end the summer melt overtook the winter growth such that the entire ice sheet melts or breaks up during the summer months.

“The total & final collapse, I had predicted that will occur in 2015-2016, at which time the summer Arctic (August to September) would become completely ice-free; is already here. The final collapse towards that state is already now happening and will probably be complete by those dates”.

Wadhams says the implications are “terrible”. “The main outcome is the release of vast amounts of CO2 and Methane – both powerful Greenhouse gases — causing a vicious feedback loop forcing an intense acceleration of global warming.”

“As the sea ice retreats in summer the ocean warms up (to 7C in 2011) and this warms the seabed too. The continental shelves of the Arctic are composed of offshore permafrost, frozen sediment left over from the last ice age. As the water warms the permafrost melts and releases huge quantities of trapped methane, a very powerful greenhouse gas. This will give a big boost to global warming.”

And the ocean is the biggest CO2 sink and this ability to absorb CO2 gets diminished as it warms up..
It also gets acidified reducing all life in it and thus reinforcing this vicious cycle…



So this is how we spell COLLAPSE …

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