 |
|
|
While some scientists suggested
that by injecting sulphate compounds into the upper atmosphere, global warming
could be neutralized, others believe that this method would severely damage the
ozone layer, especially over the Arctic region.
Dr. Simone Tilmes, of the
National Center for Atmospheric Research in Boulder explained: “Our research indicates
that trying to artificially cool off the planet could have perilous side
effects. While climate change is a major threat, more research is required
before society attempts global geo-engineering solutions.”
With the help of computer
simulations, Dr. Simone Tilmes and her team estimated that the ozone layer
would be slowly destroyed due to chemical reactions produced by the sulphate injections
in reaction to other atmospheric compounds. This would also slow down the
processes of recreating the ozone layer above the Arctic Ocean, adding at least
30 to 70 years more to the process.
"If the successful control
of ozone-depleting substances allows for a full recovery of the ozone hole over
Antarctica, we may finally see the interior of Antarctica begin to warm with
the rest of the world," said Judith Perlwitz of the Cooperative Institute
for Research in Environmental Sciences, a joint institute of CU-Boulder and
NOAA, according to the Associated Press.
As changes in our atmosphere
become more drastic each year, scientists need to consider all possibilities
before adopting such a solution. In this case, an attempt to cool the planet
by using sulphate injections would have disastrous effects on the ozone layer.
Most scientists believe global
warming is inevitably going to accentuate in the years to come, unless we do
something about it. According to the National Oceanic and Atmospheric
Administration’s latest report on greenhouse emissions, carbon dioxide
concentrations rose 0.6 percent, the equivalent of 19 billion tons, in the past
year alone, due to the intense use of fossil fuels (coal, oil, gas).
Apart from dioxide carbon
emissions, methane levels have also increased for the first time in the past
decade, and although methane is just half as harmful as carbon dioxide, its
climate related effects should draw alarm signals: we should tend towards a
less fossil fuel – dependable world.
© 2007 - 2009 - eFluxMedia