Mongabay: Greenhouse gas emissions from livestock production have increased by more than 50 percent over the past 50 years and are set to zoom higher as the developing world consumes more meat, finds a new study published in the journal Proceedings of the National Academy of Sciences (PNAS).
The research is based on analysis of the impacts of livestock production per calorie consumed, including water and fertilizer use, land area requirements, and other factors. It went beyond carbon dioxide, evaluating...