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12 Cards in this Set
- Front
- Back
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The greenhouse effect |
Greenhouse gases absorb infared radiation and increases total net energy absorbed by earth from the sun |
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Greenhouse gases |
Gases which absorb infared radiation through molecular bonds in our atmosphere |
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Main greenhouse gases |
Carbon dioxide.methane.nitrous oxide.chlorofluorocarbons and water vapour in the upper atmosphere |
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Why are greenhouse gases increasing. |
Increased transportation/industry worldwide.deforestation reducing carbon sinks.increased agriculture |
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Biofuel |
Tradition:wood 1st generation:fuelmade from organic matter through fermentation producing biodiesel or bioethanol 2nd generation:waste material from agriculture recyled to be burnt/source of energy |
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Methane production |
One tenth of all greenhouse gases come from gas flaring Ever increasing as the cattle industry increases |
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Carbon dioxide production |
One tenth comes from cement production Most comes from vehicles and energy production Deforestation reduces carbon sink absorbing abilities |
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Global warming |
The increase of earths average temperature since around 1900 as a result of anthropogenic amplification of the greenhouse effect |
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Does increased carbon dioxide increase global warming |
Yes.their is a correlation between carbon dioxide ppm and temperature change.they follow roughly the same line but always keeps the same correlation.we can prove this as of ice cores and tree rings |
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Controversial issues |
It is only a theory and cannot be proved as we don't fully understand how our planets climate system works but climate change through the greenhouse effect is a accepted theory worldwide |
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1 Global warming potential |
The amount of global warming a carbon dioxide molecule can produce |
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Other global warming potentials and average lifetime in troposphere/years |
Carbon dioxide:1::150 Methane:25::12 Nitrous dioxide:298::114 Cfc`s:4750::45 |
