Other slides in this set

Slide 2

Preview of page 2

Here's a taster:

· Ecosystems that struggle to recover from
damage, because of the harsh climate
· There is a short growing season, so plants don'
t have much time to recover
· Animals and plants will find it hard to survive
if their environment changes
· Decay is slow, so pollution lasts for a long time
and is broken down very slowly.…read more

Slide 3

Preview of page 3

Here's a taster:

· Disrupts food chains eg krill fishing in
Southern Ocean affecting whales and
· Overfishing can deplete a population beyond
recovery eg Baleen Whales
· Bottom trawling catches unwanted species
and degrades the sea bed.…read more

Slide 4

Preview of page 4

Here's a taster:

· Oil spills can occur during ship transportation
eg off the coast of Alaska in 1989. 250,000
birds and fish killed
· Oil spills can occur from pipelines. The Trans-
Alaskan pipeline has 30-40 a year…read more

Slide 5

Preview of page 5

Here's a taster:

· Mining can lead to ground and surface water
contamination by chemicals, or the mined
materials (zinc and lead)
· Mining produces solid waste and wastewater
that can be released into the environment.…read more

Slide 6

Preview of page 6

Here's a taster:

· Newcomers from Europe in 17th century
arrived in tundra areas
· There were good opportunities for hunting
seals and whales
· The disease brought by them killed 90% of the
· Also reduced the number of seals and whales
that they inuits relied on
· Unemployment and alcoholism high among
native settlements
· Many now stay put rather than being nomadic…read more

Slide 7

Preview of page 7
Preview of page 7


No comments have yet been made

Similar Geography resources:

See all Geography resources »See all resources »