a socially isolated cow

cow

CSIRO research shows methane is more than 20 times more potent than carbon dioxide in causing global warming.

Each year, cattle generate about 100 million tonnes of the gas, which is generated by micro-organisms in the cow’s stomach. NSW Agriculture’s research at Tocal Agricultural College showed one cow produced about 100 grams of methane a day, or about 10 to 15 per cent of the energy they digested, and that most was expelled from the cow’s mouth rather than its rear.

“Genetic variations enable some animals to better convert feed to body weight,” Dr Autin said. “More efficient feeding produces less methane.”

Newscastle Herald, 7 Jan 2006 – screen copy held by this website