Reply to thread

Message: <blockquote data-quote="DJU9" data-source="post: 8067772" data-attributes="member: 44472"><img src="http://a.imageshack.us/img339/8145/29275260.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Gaseous StateScientists measure methane at the source: In a lush pasture near Buenos  Aires, this cow and its compatriots are digesting important information:  how much methane—a greenhouse gas 20 times as potent as carbon  dioxide—is released by the country’s 55 million bovines. Researchers  from Argentina’s National Institute of Agricultural Technology connected  inflatable tanks to the cows’ first stomach, where methane is made,  through a small hole between their ribs.By measuring methane production directly inside each cow, biologist  Silvia Valtorta hopes to more accurately determine the country’s overall  agricultural contribution to global warming. According to the data, an  average cow releases more than 70 gallons of the stuff every day. But a  change in diet could reduce that. Cows that eat mostly grain produce 20  to 25 percent less methane than grazing cows, and adding tannin—a bitter  chemical found in wine—to the feed could lower it further.</blockquote>

Top Bottom