Slides in this set
The direct impacts of global warming include higher temperatures, sea-level
rise, melting of sea ice and glaciers, increased precipitation in some areas and
drought in others.
The Arctic is warming at an alarming rate, and I predicted to warm
by 18 degrees Fahrenheit by 2100.
This warming trend has had a devastating impact on Arctic
ecosystems, including sea ice, permafrost, forests and tundra.
This has lead to increases in lake
temperatures, permafrost thawing, increased
stress on plant and animal populations and
the melting of glaciers and sea ice.…read more
Various Arctic wildlife populations already have
been forced to adapt to changes in their habitats.
o Killer whales are now o The retreat of sea ice has
feeding on sea otters as sea reduced the platform that seals
lions ad harbour seals have and walruses traditionally use
moved out of the habitat to rest between searches for
range fish and mussels.
o Walrus survival rates
have decreases as their
food supply had changed.
o Polar bears live on sea ice
while hunting their prey and
reductions in sea ice due to
warming have resulted in
shorter feeding periods and
decreased accessibility to the
seals that they hunt.…read more
In addition to loss of habitat and feeding grounds,
climate change poses other threats to Arctic
marine mammals and some seabirds:
·Increased risk of disease.
·Increased precipitation, which will carry
pollution from the south.
·Increase in competition between species.
·Increased human activity, which will affect
previously untouched areas.…read more
Human communities that live in the Arctic like the Inuit
people are having their lifestyles disrupted.
·Working and living is more dangerous due to thinner sea ice
·Destruction of entire villages forcing people to move further
·Marine animals declining in numbers = less food
·Lack of income as hunting declines…read more