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  • Recycling diesel emissions for farm fertilizer?

    Recycling diesel emissions for farm fertilizer?

    Canadian farmer Gary Lewis, fed up with the failures of synthetic fertilizer, has invented a system called Bio-Agtive Emissions Technology, a tractor add-on that recycles diesel emissions into fertilizer.

  • Sodbusting farmers plow up the Northern Plains prairie

    Sodbusting farmers plow up the Northern Plains prairie

    The biofuels "corn bubble" and other financial incentives encourage farmers to plow up native grassland in the sensitive Northern Plains prairie potholes ecosystem; government policies don't help.

  • Powered by pond scum

    Colorado inventor Jim Sears is among those researchers fascinated by the possibility that algae farms in the Southwest could provide a source of biodiesel.

  • Lawmakers chop up renewable-energy fund

    Congress slashes the Energy Department’s Energy Efficiency and Renewable Energy Program in favor of directing money toward energy projects in lawmakers’ home districts

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