This may well have been posted on here before, if so apols. Frank Mitloehner is doing sterling work in counteracting the vegan media driven methane bollox that we're being battered with. This interview absolutley nails every conceivable angle in this "debate". He has a really good way of explaining reasonably complicated science to those who don't understand such things whilst not being patronising to those who do. This is now my goto link for the idiots out there, can't recommend it highly enough.
Frank Mitloehner: Cattle, climate change and the methane myth
Dr. Frank Mitloehner has done the math on the livestock industry’s contribution to climate change. He is a professor in the Department of Animal Science at the University of California, Davis, specializing in measurement and mitigation of airborne pollutants from livestock production, including...
www.alltech.com