The latest reports on increased levels of glacial discharge, in the journal
Science, reports the amount of ice being dumped into the ocean from the Greenland
Ice Sheet has doubled in the last 5 years. Scientists had thought that
global warming did not yet significantly threaten the ice sheet and it
would take over a thousand years to break down.
A full breakdown would
result in a catastrophic global sea level rise of 7 meters. That's bye-bye
most of Bangladesh, Netherlands, Florida and would make London the new
Atlantis.
The new evidence indicates the sheet is disintegrating quicker than
expected, and backs up
our discovery of a disturbingly fast retreat of the Kangerdlugssuaq glacier from our expedition there in 2005.
Sea level rise, caused by melting ice from Greenland and other glaciers
across the world, is already threatening some of the most vulnerable
communities in the world - small island states in the Pacific and
Indian Oceans, in Bangladesh as well as the hundreds of millions living
in low-lying coastal areas around the world.
Already, the first global warming refugees are preparing to leave their
homes. In November of last year the Papua New Guinea government decided
to start moving ten families at a time from the horseshoe-shaped
Carteret atolls in the Pacific to Bougainville, a larger island some 60
miles away. The Carterets are only 1.5 metres high and are
projected to be completely uninhabitable by 2015.
Scientists are concerned -- but politicians are not taking action.
How much more evidence do we need before we begin taking steps to avoid
catastrophe? The US
Administration and Australian Government continue to block effective
international action, other world leaders talk a lot about global
warming but avoid action because it might cost too much. But is the
cost of New
Orleans and half of Florida being under water an acceptable price for
America's oil addiction, President Bush?
If our leaders won't jump, it's up to every one of us to
take positive action to avoid the worst consequences of global warming.
We can all take some, or, even better, all, of our suggested
12 steps to help the climate. If
possible, buy your energy from a renewable energy supplier. If your
politician doesn't act on global warming - vote for someone else who
will.
Only when politicians feel the heat from voters will governments shift
their investments from dirty fossil fuel technologies to clean,
renewable energy sources that do not cause glaciers to melt, seas to
rise and more people to die from increased extreme weather events. We cannot
wait for an illusory 'silver bullet' of future technology to 'solve'
the problem. We have the tools to start; what we are missing is the
political will.
Even in the US, inaction
on global warming at the top is being met by change from below: cities, churches,
businesses, trade unions, students and the general public are not
waiting for the White House to wake up - the
US renewable energy industry is booming, almost half of US states and
200 cities have either adopted renewable energy targets or have pledged to meet
their own 'Kyoto' commitments through action taken locally.
What's needed is an energy revolution -- one which overturns the
ancient fossil fuel regime and brings forth a new vision. Revolutions don't
come from the top. They come from the people. The cost of
inaction is, quite literally, the Earth.