Contemporary sea level change from global warming or tectonics is a risk to some.

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9 Terms

1
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What is climate change?

The long term shifts in temperature and weather patterns

Can be accelerated by human activity

2
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How much have global sea levels risen and how much more are they projected to by 2080?

  • During the 20th century global sea levels rose by 20cm which is higher than any other time over the past 1,000 years

  • They may rise another 41cm by 2080

  • This is due to thermal expansion and melting land ice

3
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What is the greenhouse effect sequence?

1 - solar radiation from the sun enters the earths atmosphere and some if reflected back into space by the atmosphere , clouds and the albedo effect

2 - the rest of the sun’s energy is absorbed, warming the oceans and the earth

3- some heat radiates from the earth back into space

4 - some is trapped by greenhouse gas, sustaining life

5 - Human activity is causing an increase in the amount of greenhouse gasses by burning fossil fuels and agriculture

6 - This trapping extra heat, causing global temperature rise

<p>1 - solar radiation from the sun enters the earths atmosphere and some if reflected back into space by the atmosphere , clouds and the albedo effect</p><p>2 - the rest of the sun’s energy is absorbed, warming the oceans and the earth</p><p>3- some heat radiates from the earth back into space</p><p>4 - some is trapped by greenhouse gas, sustaining life </p><p>5 - Human activity is causing an increase in the amount of greenhouse gasses by burning fossil fuels and agriculture </p><p>6 - This trapping extra heat, causing global temperature rise</p>
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What is the Albedo effect?

  • white surfaces do not absorb the radiation and reflect it back into space

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What are the 5 carbon stores?

  • biosphere - in plants + animals

  • Lithosphere - in land + underground

  • Hydrosphere - in water/oceans/seas

  • Atheosphere - in the air

  • Cryosphere - in ice

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TEA in sea levels

T - Sea levels rose slowly between 1870 and 1940

E- melting glaciers drove 21% of sea level rise over the past 20 years

A - 1980 onwards has been faster

  • accuracy has also increased since the development of tidal gauges and satellite imagery

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What are 4 causes of climate change?

  • rapid industrialisation

  • Energy use

  • Deforestation

  • Pollution

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What are 4 effects of climate change?

  • Rising global temperatures

  • Land degradation

  • Unpredictable weather patterns

  • Loss of biomass

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