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Geography paper 1
Section B : The living world
Alaska case study
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Alaska
The most
northern
state in the USA, covering
2
million square kilometres
Alaska
The
southern
half experiences relatively mild conditions, whereas a
tundra
environment overlaying permafrost is found to the north
One of the most
sparsely
populated places on Earth, with nearly half its
750,000
residents living in the city of Anchorage
Indigenous
people of Alaska
Inupiat and
Yup'ik tribes
, part of the larger ethnic group called the
Inuit
The
ancestors of the Inuit spread throughout the Arctic into Scandinavia, Alaska, Russia and Canada during the last ice age
Since the 19th century, mainly European temperament settlers joined the
100,000
Inuit bringing the total population to nearly
750,000
In addition, temporary
economic migrants
have travelled north to work for mining and
oil
companies
Alaska
's development opportunities
Mineral
extraction
(coal, copper, silver, gold, zinc, gravel)
Energy
(vast reserves of oil and gas, transported by the trans-Alaskan pipeline)
Fishing
(employs 80,000 people, worth $8 billion to the economy)
Tourism
(over 2 million tourists every year, including cruise ships)
Trans
Alaskan pipeline
1. Oil is transported from
Prudhoe Bay
in the north to
Valdez
in the south
2. Oil is
heated
as it travels along the pipe to stop it from
freezing
3. Pipeline is raised above the land to avoid
melting
the
permafrost
Alaska's fisheries are a successful example of
sustainable
management
Alaska
's development challenges
Extreme temperatures (
winter
temperatures below -30°C, freezing
sea
and dangerous roads)
Permafrost
creates challenges for
buildings
and infrastructure (roads, domestic services)
Inaccessibility (remote region, reliance on
planes
,
ships
and dangerous winter roads)
Runways are painted
white
to reflect the energy and
reduce heat transfer
from the sun
Locals rely on
snowmobiles
and
4x4s
in the winter due to the inaccessibility