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Thursday, 17 December 2009

The science is certain?

In November 2004 the BBC reported that:
"Environmentalists are warning that the melting of glaciers in the Himalayas could spell disaster for millions of people living in the region.

They claim the situation is not being adequately monitored; the last major studies having been done in the 1990s.

Swelling glacial lakes would increase the risk of catastrophic flooding.

In the long term, the glaciers could disappear altogether, causing several rivers to shrink and threatening the survival of those who depend on them.

"It is high time we did field studies to assess the situation or else a big natural catastrophe could hit us anytime," said Arun Bhakta Shrestha, from Nepal's Department of Hydrology and Meteorology.

Rising temperatures

There are 3,300 glaciers in the Nepalese Himalayas and 2,300 of them contain glacial lakes. These lakes are quietly growing because of rising temperatures, but a sufficiently close eye is not being kept on them, campaigners say.

Between 1970 and 1989, Japanese researchers discovered most of the glaciers in the Khumbu region had retreated 30-60m. In Nepal's Dhaulagiri region, field studies until 1994 showed the same trend.

And Nepal's most studied glacier in Tsorong Himal underwent a 10m retreat between 1978 and 1989."
Worry, fear and an unmentioned but clear implication that Man Made Climate Change is to blame.


Five years on and today the BBC report that:
"A scientific debate has been triggered over the state of glaciers in the Himalayas.

Some recent findings seem to contradict claims that the glaciers are retreating rapidly. Some glaciers are even said to be advancing.

There are clear signs of glacial retreat and ice melt from other parts of the world, but few field studies have been carried out in the Himalayas.

Its glaciers too were widely believed to be receding fast.

The Intergovernmental Panel on Climate Change (IPCC) had said that Himalayan glaciers were receding faster than in any other part of the world.

The panel observed: "If the present rate continues, the likelihood of them disappearing by 2035 and perhaps sooner is very high if the Earth keeps warming at the current rate."

This report sparked concerns that there could be increased flooding in the short term, as glacial lakes suddenly overflowed.

In the longer term, major glacier-fed rivers, it was feared, would run dry, affecting millions in the region.

Glacial conflict

But some scientists claim that glaciers in the Himalayas are not retreating as fast as was believed. Others who have observed nearby mountain ranges even found that glaciers there were advancing.

Kenneth Hewitt, a glaciologist from Wilfrid Laurier University in Ontario, Canada, is one of these scientists. He has been doing field studies in Pakistan's Karakoram Mountains at the western reaches of the Himalayan range for the last 40 years.

Just back from that region, he told BBC News that he saw at least half a dozen glaciers that had been advancing since the last time he saw them - five years ago.

"Dozens of smaller, high altitude tributary glaciers have advanced including seven of Biafo Glacier and four of Panmah," he says. "
Of course since Climate Change is a fact and to state otherwise would make one a 'denier' the following has to be added:
""It means climate change is happening here too, but with different consequences."

Scientists have also described a phenomenon called glacial "surge". This is thought to be caused by melt water underneath the glacier lubricating its ground contact and causing it to move forward.

This is different from a real advance of a glacier, which is caused by an increase in the volume of ice. "
There you go, if a glacier shrinks it is due to climate change, if it advances then it is doe to climate change. Whatever happens it is the fault of climate change because that is the new religion and the excuse for 'changing the world'.

1 comment:

Ed P said...

Back in the 70s the fear was imminent global cooling. Now the same non-scientists that brought you that scare story have flipped to warming. I particularly enjoy all the idiots jumping on the bandwagon and proclaiming their bit of the world is suffering from (which ever it is)and "something must be done now" and someone else must pay for it. Now it seems there might actually be mainstream resistance to Gore/Pauchauri, the amusement level just went up a notch.