| It's called an
"ivus" and it is one of the worst kind of natural disaster
to hit an arctic coastal environment. Likened to a frozen Tsunami,
these events drive 'car-sized' blocks of ice ashore crushing
anything in their way, and its happened twice this year, as late as
Jan 28th, 2006. Witnesses said the northernmost ridge was
about 20 feet high as it plowed into the shore.
Feb 2, 2006, amid what could only be
described by Lynda Giguere of the Alaska Department of Environmental
Conservation as "extreme" ice conditions, an oil tanker
carrying nearly 5 million gallons of oil and gasoline was struck by
an ice floe and ran aground causing a spill.
At this time, says an Tesoro Corp. oil
refinery representative, there is no estimate of how much oil and
gasoline were released into the environment.
|
TWO major
glaciers in Greenland have recently begun to flow and break up more
quickly in the past 2 years, after a decade of sedentary
movement. In a report from the University of Swansea's
School of the Environment and Society, two glaciers were studied,
and it was noted that "the two major outflow glaciers had shown
the same sudden acceleration despite being more than 300km
apart" and this suggested that the cause was "not local
but more likely climatic or oceanic in origin."
The ice sheet contains one-tenth of the
world's freshwater reserves, which could swamp saline ocean systems
should the glaciers melt.
Scientists predict that global average
temperatures will rise by between one and six degrees Celsius this
century, and even a 3 degree rise could signal catastrophic loss of
life by adding up to seven metres to the height of the world's
oceans. *
* See
below for citations |