

Researchers put plastic backpacks on cows, then inserted tubes into their rumens (their biggest digestive tract). Then, they extracted the methane--about 300 liters a day. That's enough to run a car, or a fridge for 24 hours.
"[We] believe that such technology could be used to collect methane on larger scale, and even imagine a future farm with a couple of these cows used to provide energy to satisfy the farm's needs," Sorondo says.
Previously, previously, previously, previously, previously, previously, previously, previously.
Energy!
Sorry to . . . ahem . . . burst your bubble, but ruminants actually burp the methane, not fart it.
OMG
Does that mean the cows are saying "I've got a butt plug and it's not doing anyone any good"?
They do not look too happy.
http://4.bp.blogspot.com/-7Kk2KBsD6cg/URXcSG9WMLI/AAAAAAAAAPo/tCetMK2BG_4/s1600/battery.jpg
I know a few humans that emit quite a bit of gas...
No.... the cow doesn't look all to thrilled about this.
Cue animal rights activists in... (we have those too: urban life corrupts the young and impressionable)