Also helping the guinea pig's case on U.S. menus: the tiny livestock is a low-carbon footprint source of meat as compared to beef, a major plus with environmentalists.

The science behind lower carbon pigs. Better breeding programs lead to healthier pigs that place a lower burden on the environment. The result is a significant reduction in the carbon footprint of ...

Pigs pass gas and when they do, ... A University of Saskatchewan researcher has received a $241,000 grant to study whether the carbon footprint of pigs can be reduced by altering their diet.