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Any gas which has at least three atoms can be a greenhouse gas. Only they can absorb infrared radiation.

The following are the main greenhouse gases. The number after the name indicates the equivalent greenhouse gas effect compared to carbon dioxide (the principal man-made greenhouse gas):

Water vapor (H2O) = ?

Carbon dioxide (CO2) = 1

Methane (CH4) = 21

Nitrous oxide (N2O) = 298

Sulfur Hexafluoride (SF6) = 22,200

Chlorinated fluorocarbons (CFCs) = 1000 to 9000

Water vapor and Carbon dioxide are largely responsible for the natural greenhouse effect, which has kept the planet warm for millions of years.

Carbon dioxide, Methane, N2O, SF6 and CFCs are responsible for the enhanced greenhouse effect which is causing global warming.

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12y ago
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7y ago

Greenhouse gases are

  • water vapor
  • carbon dioxide
  • methane
  • nitrous oxide
  • fluorocarbons

Methane is 21 times more dangerous than carbon dioxide, pound for pound, and is coming from the melting tundra. CO2 remains of primary concern simply because of the sheer volume of it humans release each year, over 40 billion tons.

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11y ago

Water vapor, methane, and carbon dioxide all help keep the earth warm. The enhanced greenhouse effect is the result of artificially increasing levels of CO2.

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11y ago

The main gases are carbon dioxide , carbon mono oxide, CFCs and methane

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Q: What gases contribute the the greenhouse effect?
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How can you use the term greenhouse gases in a sentence?

The greenhouse gases contribute to the greenhouse effect. Greenhouse gases are inescapable.


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