Arctic
- Created by: Hannah Jeffery
- Created on: 12-04-15 09:09
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- Impacts of climate change on the arctic
- the melting of ice on the arctic ocean
- make the sea less saline and warmer
- this would make the arctic conveyor weaker
- disrupt the movement of the warm gulf streams that normally flow northwards.
- causing dramatic cooling of the north-western Europe
- this would make the arctic conveyor weaker
- 10-15% less sea ice coverage over the past 30 years
- leading to a reduced protection of the land and an increase in coastal erosion
- 140 villages been moved
- increase sea shipping opportunities
- Arctic sea will be ice free in the summer
- allowing shorter routes from Europe to japan
- safer because less risk of piracy
- Fishermen will be more successful
- migratory species will be affected because they will lose their breeding ground eg whales
- allowing shorter routes from Europe to japan
- polar bears, walruses and seals depend on the ice for their habitat
- face extinction
- leading to a reduced protection of the land and an increase in coastal erosion
- make the sea less saline and warmer
- Impacts on natural systems
- vegetation shifts
- temperate forest will replace tundra
- more trees and a higher biodiversity
- higher chance of forest fires
- increase plant productivity
- larger diversity of animal species will located here
- Caribou will lose their habitat
- more trees and a higher biodiversity
- increase carbon sinks but methane release will increase carbon stores
- temperate forest will replace tundra
- thawing permafrost
- if temperatures rose by 3C then all of Greenland would melt and sea levels would rise by 7m
- 40% of permafrost is expected to thaw
- especially in Siberia
- will release large amounts of methane
- positive feedback
- create new wetlands
- effect Arctic char and lake trout
- increase risks of drowning
- disrupt transport, buildings and infrastructure
- ultra violet impacts
- increase due to the reduction of snow and ice which have a high albedo
- increase cancer and cataract sufferers
- vegetation shifts
- impacts on society
- loss of hunting grounds and food insecurity for indigenous people
- herd animals will change their routes eg reindeer
- decline of northern fisheries eg Artic char but increase in marine fisheries eg arrival of cod
- enhanced agriculture and forestry
- exposure of land has increased exploitation of oil and gas
- warming 2-3 times faster than the rest of the world
- Albedo of the artic cools the rest of the world
- the melting of ice on the arctic ocean
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