The sector emits three types of anthropogenic greenhouse gases: carbon dioxide (CO2), the hydrocarbon methane (CHJ and nitrous oxide (N20). The main sources of those emissions are deforestation, enteric fermentation in livestock, manure left on fields, applied chemical fertilizers and rice cultivation practices. Carbon dioxide and methane account for 49 and 30 percent, respectively, of the emissions generated by agriculture, forestry and land use. This represents 14 percent of total anthropogenic emissions of carbon dioxide and 42 percent of all methane emissions.