Deforestation and forest degradation in developing countries are the primary sources of carbon dioxide (C02) emissions from these countries, accounting for 35 percent of C02 emissions in developing countries and 65 percent in least developed countries (United Nations, 2009). Agricultural irrigation accounts for some 70 percent of all water withdrawals. Moreover, it appears that water quality has been degraded partly owing to intensive agriculture, which makes excessive use of agrochemicals (pesticides and fertilizers) and has become the main source of water pollution in many developed and developing countries, rendering it unsustainable and a source of risks to human health (Molden and de Fraiture, 2004). Intensive livestock production is probably the largest sector-specific source of water pollution (Steinfeld et al., Source: University of East Anglia, Overseas Development Group (2006).