The Arctic Ocean agony

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Louis Fortier is oceanograhie professor at Laval University and
Director of Quebec-Ocean. Mission Chief for Scientific Expedition
CASES (Canadian Arctic Shelf Exchange Study), he spent a year in
the Arctic aboard the icebreaker Amundsen. Just back, he pulls the
alarm by announcing the disappearance of the Arctic world within a period
time much faster than expected and thus opening the way to the
maritime traffic in these regions apart, the 2030.
From a geopolitical point of view, the opening of the north west passage
will raise a number of issues, including that of the possession
this space to fishery resources still unclear. On the plan
economic, the road connecting Europe and Asia via Cape Horn
19.000 km long and would have no place to be.
Furthermore, such melting will have dramatic consequences on
Arctic ecosystem. According to the researcher quebecois, there is no doubt
the typical species, such as the polar bear, seal or cod
Arctic will extinguish. Early disappearance of the ice
will have a beneficial effect initially because productivity
Organic Arctic seas increases with the amount of light that
reaches the surface layer. Indeed, this bright intake stimulates
that photosynthesis is the basis of all trophic networks. A long
term, however, when the ice cover will be reduced to the parties more
deep Arctic sea, Arctic species will be replaced by
the Atlantic and Pacific species.
In addition, the melt could also have a direct impact on the effect of
greenhouse. In fact, researchers have proved the permeability of sea ice,
for summer and winter the passage of carbon dioxide to the ocean, has
Because of 20mg per square meter. However, the oceans absorbing even better
CO2 on the ice, the melting of the Arctic ice cover could
slow the Global warming. But the possibility that the oceans
return a part of CO2 which has not been supported by the pump
Organic remains as probable; and this could be even more serious
the oceanic funds already possess a certain amount of methane
Faced with all of these findings, the team of Louis Fortier can
that inviting Canada to prepare the ecological implications,
geopolitical and socioeconomic of the Arctic warming.

Sources: Le Devoir, 07 / 10 / 2004
Editor: Elodie Pinot OTTAWA,


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