The Causes and Consequences about Climate Change What do you already know about climate change?
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Transcript of The Causes and Consequences about Climate Change What do you already know about climate change?
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The Causes and Consequences about
Climate Change
What do you already know about climate change?
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Climate Change
Global Warming
Greenhouse Effect
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The Greenhouse effect The earth is surrounded by a layer of
gases including carbon dioxide. These keep the earth warm by
preventing the escape of heat that would normally be lost from the atmosphere
The gases act rather like the glass in a greenhouse. They let heat in but prevent most of it from getting out.
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How do the gases trap heat?
QuickTime™ and aCinepak Codec by Radius decompressor
are needed to see this picture.
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Global Warming The world is now warmer than it
has been for many thousands of years. Some scientists believe that in the future it will get even hotter. This is called global warming and may cause serious problems on our planet.
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This causes world temp to go up!
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“Graph Showing Carbon Dioxide Levels (1700-2100)”
Carbon Dioxide levels (1750 = 100 units)
1750 1800 1850 1900 1950 2000
2050
0
50
100
150
200
1700 1750 1800 1850 1900 1950 2000 2050 2100
years
Units
UNITS
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How can climate change?
Climate change is triggered because of the fact that the earth is warmer than it used to be. Some people think that this will mean the world gets warmer . . . But some parts will also get cooler.
Watch the video to see the different effects that could happen as a result ot Climate changing!
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What are the effects of Global Warming?
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England’s coastline could be flooded if global warming continues…
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Effects of Global warming Nobody knows the exact effects some
things that may happen could be: Polar ice caps and glaciers would start to
melt as temperatures increased Low lying areas would be flooded Some plants and animals would become
extinct Heating and energy bills could be
reduced
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Northern ports become ice free
Storms
Rise in Sea Level
Decrease in fishing catch
Poor rice crop
Short term winters, long dry summers
Increase in farming
Decrease in grain harvest