biofuel

Give Your Truck a Caffeine Jolt: Spent Coffee Grounds as a Biodiesel

The world produces an insane amount of coffee each year, somewhere around 16 billion pounds.  The grounds are soaked in water, that’s the end of their life.  They are not really consumed, only used for a small fraction of their delightful oils and stimulating phytochemicals (read: caffeine).  If the grounds are lucky, maybe they end …

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From Conventional Walnut Farming to Growing (and Processing) Green

This is a guest post by NRDC Growing Green Award-winner Russ Lester. Lester won $10,000 for his leading energy efficiency techniques—converting waste walnut shells into energy—and organic walnut growing methods. Farming is in my roots. I was born and raised in the Valley of the Hearts Delight, or as most people now refer to it: …

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