Biofuels and implications for agricultural water use: blue impacts of green energy

Rising energy prices, geopolitics and concerns over the impacts of green house gas emissions on climate change are increasing the demand for biofuel production. This paper explores the land and water implications of increased biofuel production globally and with special focus on these two important countries, using the WATERSIM model. It concludes that, although of minor concern at global level, local and regional impacts could be substantial. In fact, the strain on water resources would be such in China and India that it is unlikely that policy makers will pursue biofuel options, at least those based on traditional field crops.