Four-legged weapons of mass destruction?

Interesting article from the Guardian. It's about a new report from the Food Climate Research Network - with findings rather in line with the recent Ecologist Magazine's investigation - about greenhouse gas emissions from livestock and how emissions from farms, transport, manufacturing and retail could be cut. The headline urges a return to "old fashioned cooking" and rationing meat to four portions a week (in the UK but obviously this is a global issue) and the body of the article offers statistics that could lead you to take that advice or reject it.