New warning about climate change linked to peat bogs
Expert
says deadly gas released from melting permafrost region will lead to
'awful' consequences for global warming.
By Vera
Salnitskaya
Thaw
of the frozen bogs, which take up as much as 80 per cent of the
landmass of western Siberia, will release billions of tonnes of
methane. Picture: Sergey Kirpotin
5 May 2015
A
leading Siberian scientist has delivered another stark warning about
climate change and said melting peat bogs could speed up the process.
Professor
Sergey Kirpotin, director of the BioClimLand Centre of Excellence for
Climate Change Research in Tomsk, said he has concerns over the
'awful' consequences in Russia’s sub-Arctic region.
He
said that a thaw of the frozen bogs, which take up as much as 80 per
cent of the landmass of western Siberia, will release billions of
tonnes of methane – a greenhouse gas more potent than carbon
dioxide – into the atmosphere. That, he concluded, will greatly
speed up the effects of global warming around the world with
potentially devastating consequences.
Prof
Kirpotin, 51, first made the discovery about the threat 10 years ago
when it was found the permafrost melting for the first time since
being formed at the end of the Ice Age. Picture: Vera Salnitskaya
'Bogs
are extremely important for humanity,' explained Prof Kirpotin. 'Over
thousands of years bogs have been absorbing carbon dioxide from the
atmosphere and storing it at peat deposits. Carbon is a basic
component of greenhouse gases. This way, bogs function as a sort of
natural freezer as they don’t let the carbon build up in the
atmosphere.
'However,
the permafrost in northern areas of western Siberia has started
melting. As the permafrost thaws, it creates new lakes and old ones
get bigger. This way, all the organics trapped in permafrost started
decomposing rather quickly. Obviously, a lot of greenhouse gases,
such as carbon dioxide and methane, are released into the atmosphere.
Methane is a greenhouse gas 30 times more potent than carbon
dioxide.'
He
added: 'There is a so-called methane threat in the north of the bog.
On top of that, the ice shelf is also thawing releasing methane
hydrates and something really awful is happening.'
Probes
with methane. Sergey Kirpotin(left) and Rinat Manasypov holding the
probes of snow, taken on Vasyugan Mire this winter. Pictures: Vera
Salnitskaya
Various
experts have been examining Siberia’s bog land, and its changing
conditions, for decades. The bogs covering western Siberia spread out
to a total of 7.5million hectares and give the region a unique
eco-system. Within this region, the Vasyugan Mire bog is the largest
anywhere in the world.
At
more than 53,000km sq in size – making it bigger than Switzerland –
Vasyugan Mire is 10,000-years-old and is famous around the world for
its rare flora and fauna. Under ice and snow for much of the year,
recently tourism officials launched a bid to attract wildlife lovers
and environmentalists to the area.
The
BioClimLand centre was established a year ago and mainly focuses on
climate studies, with a special laboratory for biochemical and remote
environment monitoring.
Prof
Kirpotin, 51, first made the discovery about the threat 10 years ago
when it was found the permafrost melting for the first time since
being formed at the end of the Ice Age.
'Bogs
are extremely important for humanity. Over thousands of years bogs
have been absorbing carbon dioxide from the atmosphere and storing it
at peat deposits.' Pictures: Sergey Kirpotin
He
warned at the time that it could be an 'ecological landslide that is
probably irreversible'. Now it seems the situation is more advanced
than first thought. He said: 'The Arctic regions are more subject to
climate change. There are so-called hot spots in the Arctic and
northern western Siberia is one of them.
'That’s
happening for a few reasons. Scandinavia is warmed by the Gulfstream
so the changes there are not as rapid. Canada and Alaska have shorter
meridional lengths. Siberia is the largest Arctic territory in the
world, besides, there is a vast climate change [from continental] to
extreme continental as you move from the west to the east. This way
the changes in western Siberia are more extreme and dramatic than
elsewhere in the world.'
The
new warning comes just weeks after another Russian expert said the
Arctic could be completely ice-free within just 40 years.
Nobel
Peace Prize winner Professor Oleg Anisimov said there is now evidence
that temperatures are rising four times faster in the frozen region
than the rest of the planet.
It
would mean open water at the top of the world by 2050, with nothing
more than a few floating icebergs where the North Pole was once
located.
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