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Biosphere
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Home of all living creatures
on Earth
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3 km deep in crust
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10 km high in troposphere
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Living creature's outputs
have impact on atmosphere
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Plants create oxygen :-)
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CFCs deplete ozone :-(
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Industrial processes create
Carbon dioxide (CO2)
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The greenhouse effect: Carbon
dioxide (CO2) helps trap heat by transmitting UV, reflecting
IR
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CO2 content increasing
since 1958. What did it do before then?
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Global warming?
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These effects may not be
"real." Do you want to take the chance?
Atmospheric CO2
content measured in Hawaii
Average global temperature
temperature change
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