Geography 1A- Climate Change

What is climate change?
Any significant change in the Earth's climate
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What is global warming?
The sharp rise in global temperature
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How can tree rings be used as evidence for climate change?
Because tree rings are thicker in warm,wet conitions so they can see what climate was like
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How can ice and sediment cores be used as evidence for climate change?
They can see the gases trapped in the layers of ice
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How can pollen analysis be used as evidence for climate change?
Pollen gets preserved in sediment which can be compared with pollen now
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How can temperature records be used as evidence for climate change?
They give a reliable record of temperature change
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How do orbital changes cause climate change?
The radiation from the orbits affects the amount of solar energy the earth recieves
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How does volcanic activity cause climate change?
Eject large quanties of material into air which reflects suns rays back out, also CO2 released
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How does solar output cause climate change?
Period where slar output is reduced causes it to be cooler in some areas
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What are some human ways that we cause climate change?
Burning fossil fuels, farming, cement production and deforestation
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How does farming cause climate change?
Animals produce methane and rice paddies emit methane
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How does cement production cause climate change?
It is made from limestone whcih contains carbon, CO2 released when produced
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What effects does climate change have on glaciers?
They shrink whcih makes animals lose homes and causes sea level to rise wheich will then flood low lying areas
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What effects does climate change have on other animals?
They are declining and distribution of animals are being found in the wrong areas e.g in higher latitudes
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What effects does climate change on areas?
They are becoming dryer and impossible to live in leads to migration in other areas. Also water shortages
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What effects does climate change have on farming?
rops have suffered- getting smaller, howwver some benefit from wamer conditions
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What effcets does climate change have on weather?
More extreme whcih means more money spent on predicting, reducing and rebuilding
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How can we manage climate change? (4 ways)
Carbon capture, planting tress, alternative energy and international agreements
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What is carbon capture?
Capturing C02 and tarsnporting it to be stored underground
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What is one international agreemet?
The Kyoto Protocol was signed in 1997
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What are the three ways we can adapt to climate change?
Managing water supply, coping with sea rise level and changing agricultural systems
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How can we manage water supplies?
Water metres and rainwater can be collected
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How can we cope with rising sea levels?
Physical defences- flood barriers and build houses on tp of embankments
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How can we cope with changing agricultual systems?
Plant new crop tyupes and use biotechnology to create more crop varieties
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Other cards in this set

Card 2

Front

What is global warming?

Back

The sharp rise in global temperature

Card 3

Front

How can tree rings be used as evidence for climate change?

Back

Preview of the front of card 3

Card 4

Front

How can ice and sediment cores be used as evidence for climate change?

Back

Preview of the front of card 4

Card 5

Front

How can pollen analysis be used as evidence for climate change?

Back

Preview of the front of card 5
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