NY Times Article - Trying to Stop Cattle Burps From Heating Up Planet

By Norimitsu Onishi
July 13, 2010

"To hear Athol Klieve tell it, a key to reducing Australia’s enormous carbon emissions is to make a cow more like this country’s iconic animal — the kangaroo. Both animals are herbivores, and both eat grass that is fermented before entering their main stomachs. But while cattle belch enormous amounts of methane to digest the food, kangaroos release virtually none — they burp only harmless acids that can be turned into vinegar...."

http://www.nytimes.com/2010/07/14/science/earth/14australia.html?_r=1