"Fourteen per cent of emissions from all sources in Australia is from enteric methane from cattle and sheep,'' said Athol Klieve, a senior research scientist with the Queensland Government.
"And if you look at another country such as New Zealand, which has got a much higher agricultural base, they're actually up around 50 per cent,'' he said...
Even farmers who laugh at the idea of environmentally friendly kangaroo farts say that's nothing to joke about, particularly given the devastating drought Australia is suffering.
"In a tight year like a drought situation, 15 per cent would be a considerable sum,'' said farmer Michael Mitton.
But it will take researchers at least three years to isolate the bacteria, before they can even start to develop a way of transferring it to cattle and sheep.
Here's a solution: Forget about patriotism, just eat the animal already!
Another group of scientists, meanwhile, has suggested Australians should farm fewer cattle and sheep and just eat more kangaroos.
The idea is controversial, but about 20 per cent of health-conscious Australians are believed to eat the national symbol already.
"It's low in fat, it's got high protein levels it's very clean in the sense that basically it's the ultimate free range animal,'' said Peter Ampt of the University of New South Wales's institute of environmental studies.
"It doesn't get drenched, it doesn't get vaccinated, it utilises food right across the landscape, it moves around to where the food is good, so yes, it's a good food.''
It might take a while for kangaroos to become popular barbecue fare, but with concern over global warming growing in the world's driest inhabited continent, Australians could soon be ready to try almost anything to cut emissions.