Kangaroo Farts Could Help Curb Warming

Australian scientists worried about global warming have turned to one of Mother Nature's cleanest "natural gas" producers, the kangaroo, for help. It seems that when kangaroos fart, the stuff contains none of the methane produced by cattle and sheep breaking wind. Scientists want to transfer the bacteria from kangaroos' stomachs to those animals to cut down on their noxious emissions, AFP reports.

It's no joke. "Fourteen percent of emissions from all sources in Australia is from enteric methane from cattle and sheep," said one researcher. In New Zealand, the figure is closer to 50%. Plus, farmers would save a bundle on feed because the bacteria also makes the animals' digestion more efficient. The technique is still years off. (More Australia stories.)