Feeds

Indian climate boffins: Himalayan glaciers are NOT MELTING

IPCC caught in yet another confirmation bias trap

The smart choice: opportunity from uncertainty

Top Indian physicists have concluded Himalayan glaciers show little sign of retreat – in one of the largest studies of its type ever carried out.

I. M. Bahuguna et al, publishing in Current Science [PDF, issue index], studied changes to 2,000 glaciers in various Himalayan regions between 2001 to 2011. They conclude that 1,700 were stable, showing the same surface area and no change of direction.

248 glaciers exhibited a retreat, and 18 an advance. The scientists estimate a net loss of glacier area of about 10,000 km2 – that's a 0.2 per cent decrease (+/- 2.5pc), and an average retreat of 2.1 metres annually.

Glacier melt is important to note because it presages rising sea levels in the future – although this can take a very long time, typically hundreds of years. The Indian boffins used satellite imagery backed up by selective field observation of their own. It confirms earlier research published in Nature that the Himalayas are in line with the historical natural warming trend.

Glacier extent reached its peak 22,000 years ago. Glacier retreat accelerated with the end of the last ice age, some 11,000 to 12,000 years ago. They're expected to advance again when the current interglacial period comes to an end.

The advance of glaciers in the Karakorum region has been noted before. Some glaciers can retreat several hundred feet a year, prompting some scientists to use computer modelling and small sample sizes to generate alarming conclusions.

The Indian study, by contrast, uses empirical evidence and a sample size of over 2,000.

India stepped up its own scientific research after shoddy work was exposed in the 2007 IPCC AR4 report into climate impacts. That report claimed the Himalayan glaciers would disappear entirely by 2035, leading to widespread drought, starvation and migration. It was rubbish, as the unapologetic IPCC chairman Rajendra Pachauri, was forced to admit.

India is now stepping up its own climate research as a consequence; Indian Environment Minister Jairam Ramesh has described the IPCC as “alarmist”.

“The clear and well-established standards of evidence required by the IPCC procedures were not applied properly", Pachauri and co admitted in a 2010 statement [PDF], adding that "poorly substantiated estimates" of the speed of glacier melting found their way past the apparently most exhaustive review process in the world.

The 2035 date was based on just three sources, none of which had even been subjected to peer review: one was a report by eco-campaigners at the WWF, and another a news item in New Scientist. Both are so-called “grey literature”. ®

The Power of One Infographic

More from The Register

next story
World Solar Challenge contender claims new speed record
One charge sees Sunswift travel 500kms at over 100 km/h
SMELL YOU LATER, LOSERS – Dumbo tells rats, dogs... humans
Junk in the trunk? That's what people have
The Sun took a day off last week and made NO sunspots
Someone needs to get that lazy star cooking again before things get cold around here
Boffins discuss AI space program at hush-hush IARPA confab
IBM, MIT, plenty of others invited to fill Uncle Sam's spy toolchest, but where's Google?
Bad back? Show some spine and stop popping paracetamol
Study finds common pain-killer doesn't reduce pain or shorten recovery
Forty-five years ago: FOOTPRINTS FOUND ON MOON
NASA won't be back any time soon, sadly
Jurassic squawk: Dinos were Earth's early FEATHERED friends
Boffins research: Ancient dinos may all have had 'potential' fluff
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.