Daily Archives: November 10, 2008

Is methane a ‘better’ greenhouse gas than CO2?

The idea that methane is a more ‘potent’ greenhouse gas than carbon dioxide is a popular notion. There’s an interesting discussion going on in Bad Astronomy by Phil Plait. Plait says,

Methane is in fact a more efficient greenhouse gas than CO2, but there’s so much less of it that the overall effect is much lower. Methane’s contribution to the greenhouse effect is only about half or less that of carbon dioxide.

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