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Some policies
which are being considered for GHG management may even discourage removal of
carbon dioxide from the atmosphere. Reflection on the landfill concept
reminds us of Mother Nature’s methods to produce fossil fuels as carbon is moved
underground from the atmosphere by burying organic wastes.
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Presumably waste
management systems could be designed which would trap nearly all of the carbon in organic waste thus
forming a sink and a potential emission removal credit. On the other hand if
the waste were simply incinerated the
carbon content would be released to the atmosphere as carbon dioxide. No
removal or reduction credit would be generated.
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In between these
extremes there is the possibility of generating methane. Methane is 21 times
more effective than carbon dioxide as a greenhouse gas. It thus seems
possible to create up to 28 carbon dioxide equivalent credits from
processes which produce methane. That
makes them much more financially rewarding than those which might actually
sequester carbon.
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Establishing policy to provide credits for landfill gas
capture could thus discourage waste management which would be carbon neutral
or would actually remove carbon from the atmosphere.
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