Wednesday, December 21, 2011

GLACIERS MELTING FASTER

VIENNA (AP) - Scientists claim to have been melting glaciers around the world 100 times faster in the next 350 years. The danger, it affects millions of people who depend on freshwater. The claim was based on studies in Patagona, South America with 270 Patagonian glaciers is equivalent to 1700 times the quantity of water in Lake Windermere. The study, conducted Professor Neil Glasser of Aberystwyth University to analyze the amount of rocks left by glaciers that have disappeared. 
Since the Ice Age ended in Patagonia in the mid 17th century, the region has lost 145 cubic ice.This caused an increase in temperature at 1.4 degrees Celsius in the region. According to a report in the journal Nature Geoscience.
"The glacier has been significantly reduced over the past 30 years. It exceeded our expectations, "said Professor Glasser. 
"It's very scary," he said again.
He who conducted the study along with scientists from the University of Exeter and Stockholm University said the glacier region of South America, just as the glaciers in the Alps or the Earth's northern region, experienced a drastic reduction of the glacier. 
"It's murder for the Himalayas. In the short term are beneficial because they get more fresh water during the dry season. But, in the long run, this is a big problem, "said Professor Glasser again. 
Not just stop there, is reported in the Arctic ozone layer is also more severe in winter, due to cold weather in the upper atmosphere. 
At the end of March, 40 percent in the stratospheric ozone layer has been damaged, up from the damage is still around 30 percent.Similarly, as reported by BBC News.
The ozone layer protects humans from skin cancer, but the gas layer is damaged by the chemical industry pollution. The damage is the reaction of cold conditions in the stratosphere due to the chemical industry pollution. 
Several chemicals already banned its use through treaties of the United Nations Montreal Protocol, but the presence of such substances in the atmosphere will last a long time until many decades.
Although the temperature cools the stratosphere is an annual event in the south polar region, but the picture of the north pole is still not predictable.
In winter, when the north polar region is usually warm in its ground, the temperature of 15-20 km above the Earth's surface even inversely.
"The level of damage to the ozone layer in the winter depending on meteorological conditions," said Michel Jarraud, Secretary General of the World Meteorogical Organization (WMO).
"Damage to the ozone layer in 2011 shows that we must be alert and open eyes on the situation in the north pole in the near future," added Jarraud. 
Damage to the ozone layer ultraviolet-B to make the dangerous from the sun can enter the atmosphere. This can cause skin cancer, cataracts, damage to the immune system. 
WMO has warned residents to be alert to this world.
Montreal Protocol treaty agreed in 1987, has banned the use of substances Chlorofluorocarbons (CFCs) that was widely used for refrigerators. 

reference source :

No comments:

Post a Comment

Leave comments here ...