Leaders
There are benefits in the melting
of the Arctic, but the risks are much greater
My interest:
I am worrying that we forget the global warming phenomenon after the
earthquake. Of course I know several researchers claims there are no such links
between CO2 and global warming and there are skeptics among ordinary people, but
I think these claims are minor argument. First, global warming affects marginal
places such as the Arctic, so we don’t actually feel the changes of the
climate. Second, it is important to control green house emissions as we do
about sewage and garbage considering limited space of the earth. The international
society admitted the effect and reached an agreement to decrease carbon
emissions in near future. We should stick to this issue.
Discussion:
Why do you think this melting
is opportunity or risk?
Are their other risks we
should be in mind?
What kind of effects does
this issue have on Japan? How far?
Summary:
FACTS
1. The ice has
shrunk far below the long-term average. (-12% each decade since 1970s / the
summer minimum was 4.33m square km – almost 1/2 for 1960s)
2. The arctic is
warming roughly twice as fast as the rest of the planet. (mainly by the albedo effect - darker colored land
or water has a positive feedback on warming)
MERITS
The retreating ice offers access to precious minerals and new sea-lanes
(Northern Sea Route/ North-west passage). The great melt is going to make a lot
of people rich by making large area suitable for agriculture and producing new
oil industry in the area.
RISKS
1. The culture of
the Inuit / Arctic peoples claims “right to be cold”.
2. Politics between
the Arctic countries / Conflicts of minerals and sea-lane interests emerge.
3. Pollution / A big
oil spill will cause devastated pollution among the area
4. Climate change (disrupt
oceanic circulation / thaw permafrost / raise sea levels) / Unique ecosystem
and perhaps many species will be lost.
The Economist’s point of view
Economic benefits are huge and cultural, political and environmental
risks are often exaggerated. However, as scientific researches suggest that
climate change becomes excess in the Arctic because of positive feedback, the
risk of the loss of the ecosystem is huge still.
Other discussions: