Are high-efficiency diesel engines a real long-term solution to car emissions problems?



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    More and more, it appears not. High-efficiency diesel engines are dependent on a ready supply of biofuels, and studies by the Washington D. C.-based International Food Policy Research Institute and the Geneva-based International Institute for Sustainable Developmentā€™s Global Subsidies Initiative (GSI) are now indicating that biofuels are not contributing much to solving the climate crisis, and that they have several serious drawbacks. Biofuel subsidies are expensive and not sustainable. The production of food crop biofuels has not only already spiked prices of basic food crops of the poor in developing countries, but will raise world food prices 20-40% higher by 2020, using precious water supplies while enriching agribusinesses.

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