Sunday, July 28, 2013
Moving at Glacial Speed
Alaska is
the new Wild West. With the exception of abused minorities of indigenous
peoples, who have watched oil drillers and crazy white settlers take over
increasing shares of natural resources, the state is all about conservative
independence, ignoring the environmental risks and braving the elements for
that frozen fall-winter/brief mosquito-ridden summer state’s massive
opportunities, perhaps even sharing in the reverse income tax that comes with
oil wealth. But as the New York Times (July 22nd) points out, most
of inhabited Alaska joins the deep south and the rust belt as the places with
the lowest levels of social mobility – that notion of children doing better
than their parents – in the United States. Still, for those with strong
spirits, Alaska beckons with hope.
Exxon
Valdez be damned, because there’s gold (and oil) in them thar hills! And even
though the Northwest Passage is growing along the top of the state, Alaska is
the home of Sarah Palin and climate-change-denying denizens who want her back
to represent the state in the U.S. Senate. But aside from the potential
benefits of that northern sea route and opening up areas to further exploration
in the great de-frost, Alaska provides some of the most glaring evidence of
climate change in the entire country.
The signs
are everywhere in Alaska, but perhaps it is her glaciers where the consequences
of greenhouse gasses are most obvious. That long finger of land at the bottom
of the state, home to the capital Juneau, lays claim to one of the most obvious
meltdowns, a mere 14 miles from downtown: Mendenhall Glacier. And that
Mendenhall River below swells accordingly.
“Starting
in July 2011, and each year since, sudden torrents of water shooting out from
beneath the glacier have become a new facet of Juneau’s brief, shimmering high
summer season. In that first, and so far biggest, measured flood burst, an
estimated 10 billion gallons gushed out in three days, threating homes and
property along the Mendenhall River that winds through part of the city. There
have been at least two smaller bursts this year.
“‘That
first one caught us by surprise,’ said Tom Mattice, the emergency programs
manager and avalanche forecaster for the City and Borough of Juneau… That the
Mendenhall Glacier is thinning, and has been for decades, is only part of the
explanation. Water from snowmelt, rain and thawing ice are also combining in
new ways, researchers said — first pooling in an ice-covered depression near
the glacier called Suicide Basin, then finding a way to flow downhill.” NY
Times, July 22nd. Flood bursts?
“Glaciologists
even have a name for the process, which is happening in many places all over
the world as climates change: jokulhlaup,
an Icelandic word usually translated as ‘glacier leap.’ … What prompts a surge,
and the urgent search for a way to anticipate and prepare by scientists and
safety officials like Mr. Mattice, is pressure. As water builds up in the basin
and seeks an outlet, it can actually lift portions of the glacier ever so
slightly, and in that lift, the water finds a release. Under the vast pressure
of the ice bearing down upon it, the water explodes out into the depths of
Mendenhall Lake and from there into the river.” NY Times.
Glacial
speed may have to be redefined… it can get downright fast. But it also signals
the challenges that humanity must address over the coming years. Not only do we
face the slow rising of ocean tides, desertification and sustained drought elsewhere
and the melting of once-frozen “wasteland,” there are the sudden unanticipated
disasters or unknown brutal forces ranging from hurricanes/typhoons, ocean
storm surges, unexpected flooding and yes, glacial jokulhlaup.
Our
seeming global inability to grapple with the root cause of these phenomena,
burning fossil fuels, and the fact that environmental change has outpaced even
the most aggressive climatologists projections, suggest that humanity will face
massive catastrophic disasters, taking tolls in human life, property and
productivity, that will cost governments untold billions (trillions?) in
unplanned emergency expenditures. It does seem as if that seemingly American
tradition – ignoring the cost of fixing current problems that will inevitably
generate massive multiples of cost in the future – has become a global pastime
as well.
I’m Peter Dekom, and
when you look at your own life, how probable do you think it is that you
personally will face some serious climate-related disaster in your lifetime?
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