A different possibility for animal gas..... (Full article from BBC)
BBC NEWS kangaroos offer clue to global warming .Internet on-line. Available from <http://news.bbc.co.uk/1/hi/world/asia-pacific/2023371.stm>. [12/7/2007, 2007].
Scientists in Australia are investigating whether kangaroos could help combat global warming.
Australia's sheep and cattle produce huge amounts of methane, an important greenhouse gas - but kangaroos do not.
Researchers believe it might be possible to use bacteria found in the stomachs of kangaroos to reduce methane output from cows and sheep.
Methane emissions from farm animals account for about 15% of Australia's greenhouse gas production.
Yet kangaroos, feeding on the same sorts of grass, produce no methane at all.
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