From Annanova.com (27 July 2005)
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Cows are being kept inside ‘bio-bubbles’ so scientists can measure gas emissions.

The University of California project will be used to help write the state’s first air quality regulations for dairies.

Cows are placed inside the bio-bubbles where monitors measure the gases that they emit.

It’s been estimated that an average herd of cows causes more pollution than a car.

But researcher Frank Mitloehner believes the problem may have been over-estimated.
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These people from the US are CrAzY! They’d rather invest time and money studying the environmental impact of cow fart than to ratify the Kyoto Protocol which would likely bring down greenhouse emissions.

And what’s that guy doing in the middle? Getting a high from poo gas?