Biofuel production will increase demand for land at the expense of nature. It will also require large quantities of water, already a major constraint to agriculture in many parts of the world. An estimated 40% of the world’s population lives in areas where water scarcity must be reckoned with. IWMII’s research under the Comprehensive Assessment of Water Mangement in Agriculture shows that at a global average, the biomass needed to produce one litre of biofuel evaporates between 1000 and 3,500 liters of water, under prevailing conversion techniques.
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