The ethics of biofuels

An article in the current issue of Global Change Biology Bioenergy outlines a framework for evaluating biofuels in order to address ethical issues surrounding the rapidly evolving race to develop biofuels.

Water purification made simpler

(PhysOrg.com) -- Filtration systems used in homes in the developing world, says Kristen Jellison, can be made smaller and less expensive.

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