"Tackling Climate Change through Livestock, FAO, 2013 (http://www.fao.org/3/i3437e.pdf)." . "2018-05-29T20:41:05Z"^^ . "Equipment where anaerobic digestion is operated; i.e. the process of degradation of organic materials by microorganisms in the absence of oxygen, producing CH4, CO2 and other gases as by-products."@en .