The Greenhouse Effect and Global Warming

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The Greenhouse Effect and Global Warming
GHB 2005
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What happens when heat radiation hits the ground?
Some heat energy is absorbed by the ground
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What happens to heat radiation after it is
reflected by the ground?
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The higher the concentration of greenhouse gases
in the atmosphere
the more heat is absorbed by the atmosphere.
The more heat radiation that is absorbed by
greenhouse gases
the warmer the atmosphere becomes.
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What happens if the temperature of the atmosphere
increases?
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Sea levels will
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The main greenhouse gases are
- Carbon dioxide
- Methane
- Water vapour
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Sources of Greenhouse Gases
carbon dioxide
methane
Methane
Carbon dioxide
(Mostly burps, but also
(Respiration)
some farts!)
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Plants remove carbon dioxide from the atmosphere,
in a process called
photosynthesis
Chopping down trees
increases the amount of carbon dioxide in the
atmosphere, by
reducing the rate of photosynthesis
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Mr Burns has bought a large tract of South
American Rain Forest
He wants to turn part of the land into pasture
for cattle
On the rest of the land, he wants to build a
factory for turning the cattle into canned steak
pies
These pies will be exported to Europe
What is the likely impact of this plan on global
warming? Explain your answer as fully as possible.