Livestock and Insects

Last year a major report into the environmental impact of meat eating by the Food Climate Research Network at Surrey University claimed livestock generated 8 per cent of UK emissions - but eating some meat was good for the planet because some habitats benefited from grazing. It also said vegetarian diets that included lots of milk, butter and cheese would probably not noticeably reduce emissions because dairy cows are a major source of methane, a potent greenhouse gas released through flatulence.

http://www.ewg.org/meateatersguide/a-meat-eaters-guide-to-climate-change-health-what-you-eat-matters/climate-and-environmental-impacts/

Lamb production creates the more CO2 per kilogram of meat than any other protein source: 39.2 kg of CO2 per kg of consumed food; beef comes in second with 27.0 kg CO2 per kg. Cheese (13.5), pork (12.1), salmon (11.9), turkey (10.9), chicken (6.9), tuna (6.1), and eggs (4.8) round out the common animal based proteins.

Breeding commonly eaten insects such as locusts, crickets and meal worms, emits 10 times less methane than livestock

http://worldcrunch.com/food-travel/china-039-s-maggot-factories-hoping-to-feed-the-world/china-insects-maggots-foodie-entomophagy/c6s9713/

http://www.npr.org/blogs/thesalt/2011/10/24/141661332/bugs-bugs-everywhere-even-on-your-dinner-plate


http://www.sciencedirect.com/science/journal/00207519/43/3