THEY sound like unlikely warriors against greenhouse gases, but bacteria found in kangaroos’ stomachs could be just that. Feeding the bugs to sheep and cattle could drastically cut emissions of the potent greenhouse gas methane.
Cud-chewing animals have a lot to answer for. A sheep typically burps out 25 litres of methane a day, while cows can expel a staggering 280 litres in the same period. Together, they account for around 14 per cent of the greenhouse gas emissions from Australia and 50 per cent from New Zealand. Methane is a far more potent greenhouse gas than carbon dioxide.
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