Sources:dynaimage.cdn
" The Scientists thus found the changes in 650 Himalayan glaciers.
On average, the glacier surfaces sank by 22cm a year from 1975 to 2000.But the
melting has accelerated, with an average loss if 43 cm a year from 2000 to
2016. The analysis shows that 8bn tonnes of ice are being lost every year and
not replaced by snow, with the lower level glaciers shrinking in height by 5
meters annually. As per the report at least a third of the ice in the Hindu
Kush-Himalaya ranges was already doomed to melt by the end of the century.
"
The melting of Himalayan glaciers has doubled
since the turn of the century. Joshua Maurer, from Columbia University's
Lamont-Doherty Earth observatory, used a computer tool that enabled converting
US spy satellite images of mid 1970s into 3D maps. It led to declassify the
satellite data to create the first detailed, four-decade record of ice along
the 2,000km mountain chain.
Serious consequences will be felt by those
who rely on the great rivers that flow from the peaks into India, Pakistan,
China and other nations. Increasingly,uncertainty and irregular water supplies
will impact the 1 billion people living downstream from the Himalaya mountains
in south Asia. The study shows that only global heating caused by human
activities can explain the heavy melting.
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