Cattle and Climate
Is there any link bteween global warming / climate change
and the increased population of cattle worldwide. If so can it be
estimated what proportion of the potential problem arises from this source.
Some scientist speculate that when cows expel intestinal gas (to put it
politely!) they contribute to global warming by increasing the amount of
methane in the atmosphere. They certainly aren't the only source-a study was
done on termites also that showed that methane was expelled as they broke
down cellulose-but if they are increasing in number they probably are one of
many sources. I'm sorry I can't steer you towards actual studies, but I
think they were done in the 1970's.
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Update: June 2012