Feeds

Melting Siberia threat to climate

Lots of methane in them thar bogs

Choosing a cloud hosting partner with confidence

The largest frozen peat bog in the world, lying in western Siberia, is melting, according to Russian scientists. The million square kilometre area*, previously permafrost, is becoming a series of increasingly soggy shallow lakes, some already more than a kilometre across.

The melting raises the spectre of vast quantities of methane suddenly being released into the atmosphere. Methane is one of the most potent greenhouse gases, with a warming effect 20 times greater than that of carbon dioxide.

The bogs are thought to contain some 70 billion tonnes of methane, a quarter of all the land-stored methane on the planet.

The researchers, Sergei Kirpotin, a botanist at Tomsk State University, Russia, and Judith Marquand at the University of Oxford, told New Scientist that the whole western Siberian sub-arctic region has begun to melt, and that this has only happened in the last four years. Kirpotin said he had witnessed an "ecological landslide that is probably irreversible and is undoubtedly connected to climatic warming".

The frozen peat bogs formed at the end of the last ice age, around 11,000 years ago. One thing peat bogs do is produce methane, a byproduct of rotting organic material. However, since Siberia has been frozen, most of the methane generated over the last 11,000 years has been trapped in the permafrost.

Now that it is melting, and provided the region stays wet, all that methane will be released into the atmosphere. If the bogs dry out, the methane will have a chance to oxidise to form carbon dioxide before it escapes the bogs, which would lessen the impact.

Siberia is particularly vulnerable to climate change, it seem, and the region has warmed faster than anywhere else on the planet. A positive feedback cycle is created when ice melts, exposing more ground which absorbs more solar energy than ice or snow. This, in combination with regional weather shifts, such as the Arctic oscillation, is thought to be behind the region's three degree increase in average temperatures over the last 40 years. ®

Bootnote

*Almost 50 times the size of Wales, for those who like to keep track of these things

Choosing a cloud hosting partner with confidence

More from The Register

next story
Bond villains lament as Wicked Lasers withdraw death ray
Want to arm that shark? Better get in there quick
Renewable energy 'simply WON'T WORK': Top Google engineers
Windmills, solar, tidal - all a 'false hope', say Stanford PhDs
The next big thing in medical science: POO TRANSPLANTS
Your brother's gonna die, kid, unless we can give him your, well ...
SEX BEAST SEALS may be egging each other on to ATTACK PENGUINS
Boffin: 'I think the behaviour is increasing in frequency'
NASA launches new climate model at SC14
75 days of supercomputing later ...
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
Reuse the Force, Luke: SpaceX's Elon Musk reveals X-WING designs
And a floating carrier for recyclable rockets
Simon's says quantum computing will work
Boffins blast algorithm with half a dozen qubits
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Getting ahead of the compliance curve
Learn about new services that make it easy to discover and manage certificates across the enterprise and how to get ahead of the compliance curve.