http://news.bbc.co.uk/2/hi/asia-pacific/8385068.stm
Australian aims to breed 'green' sheep that burp less
Australian scientists have said they are hoping to breed sheep that burp less as part of efforts to tackle climate change.
The scientists have been trying to identify a genetic link that causes some sheep to belch less than others.
Burping is a far greater cause of emissions in sheep than flatulence, they say. ......
The cure for a fallacious argument is a better argument, not the suppression of ideas.
-- Carl Sagan