SciDevNet: Farmers could earn more and protect the environment by using technologies and practices that reduce the global warming gases that livestock emit, according to a report by the UN Food and Agriculture Organization (FAO). The report's five case studies suggest that the potential for mitigation is greatest among low-productivity ruminant producers in South Asia, Sub-Saharan Africa and Latin America and the Caribbean. It found that raising livestock such as pigs, cattle and poultry generates climate-altering...