The largest research project ever undertaken in the Arctic will study
the impact of global warming on the sensitive region's ecosystem next
winter, Canadian project leaders said on Thursday. Researchers will
troll a frigid open channel on the Beaufort Sea using a retrofitted
icebreaker to study the Arctic environment and its shrinking sea
ice.
The C$40 million (US$34 million) investigation involving more than 200
researchers from 14 countries is believed to be the largest single study
in the International Polar Year program, launched on Thursday in Paris.
It will be the first time a ship has spent the winter in the circumpolar
flaw lead -- the cracks that develop between the permanent polar ice and
coastal ice -- said David Barber, a Canadian sea ice expert leading the
study.
"These cracks are early indicators of what we expect the Arctic to look
like as we move into the future, because more and more, the Arctic will
be open of sea ice," said Barber, who is based at the University of
Manitoba.
Global warming is amplified at the Earth's poles, melting about 70,000
square kilometres (27,000 square miles) of Arctic ice each year, a pace
that could see the region seasonally free of ice by 2050, Barber
said.
Less ice means the ocean can absorb more sunlight, further heating up
the water and the environment, and affecting the entire ecosystem.
Even in the dead of winter, when the Arctic sees little sunlight, there
is abundant life to study in the "oasis" of the flaw leads, Barber said.
"The research in the project covers everything in the physical world
from the bottom of the ocean to the top of the atmosphere ... and
everything in the ecological world from viruses to whales," he said.
"The whole idea is to understand the interconnections between how the
physical world changes and the effects it has on the biological world."
The logistics of changing crews and supplying the ship in the high
Arctic are daunting, although team leaders gained experience
overwintering the same icebreaker, socked into frozen coastal ice, four
years ago.
Researchers will need to arm themselves against fearless polar bears,
and gird themselves for temperatures as low as -50 Celsius (-58
Fahrenheit).
"It's a dangerous place," Barber said. "There's enough force and energy
in this mobile ice to crush an icebreaker."
In total, Canada will spend C$150 million (US$128 million) on 44 polar
projects, making it the largest International Polar Year participant.
The project is being watched by shippers, who see the Arctic's fabled
Northwest Passage as a future shipping route, and by oil and gas
developers, who are looking to tap the area's vast energy resources,
Barber said.
An estimated 25 percent of the world's known oil and gas reserves are in
the Arctic.
The icebreaker used in the study has been employed to map Canada's
continental margins as the country moves to claim sovereignty over
reserves, Barber said.
The study will also involve Inuit and Inuvialuit people who live and
hunt in the region, near Banks Island in the Northwest Territories, who
until recently did not have words in their language for such things as
bumblebees and sunburn, Barber said.
"We want to integrate the traditional knowledge they hold with the
scientific knowledge from these projects," Barber said.
(Por Roberta Rampton,
Planet Ark, 02/03/2007)