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Article
UPS and others are switching to biomethane to save money, while suppliers earn extra money from the sale of credits.
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Article
The arrival of the Nissan Leaf and the Chevy Volt in just a few months could become a watershed moment for the auto industry, as well as for the environmental movement. Unlike the Prius, the Leaf and Volt are not aimed at the early-adopter, eco-conscious, well-to-do niche buyers. They are being built for the mass market.
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by Marc Gunther