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  • Rob Elam, biodiesel buff, answers questions

    Rob Elam. What work do you do? I’m a cofounder of Propel Fuels, a biodiesel services and distribution firm. Biodiesel is a vegetable-oil based fuel for diesel engines. Using it significantly reduces greenhouse-gas and particulate-matter emissions. What does your organization do? Our mission is simple: fill tanks with biodiesel. We’re approaching this in three ways: […]

  • Umbra on true hybrids

    Dear Umbra, I read the New York Times article that reported auto manufacturers are using hybrid technology to boost power rather than improve mileage. It specifically mentioned the Honda Accord, claiming that the mileage difference between the six-cylinder and the hybrid is minimal. What are the facts here? Is there a hybrid that really, actually, […]

  • Dense and Densibility

    Densest U.S. cities aren’t the ones you think Advocates of energy-saving urban density usually laud the towering buildings and subways of Manhattan, as contrasted with the car-heavy suburban sprawl of, say, Los Angeles. But the most dense city in the U.S., measured by people per square mile, is … Los Angeles. In fact, despite its […]

  • Prius-toric

    Team achieves 110 mpg in Toyota Prius If you thought fuel efficiency was cool, wait ’til you meet … Xtreme fuel efficiency! Rawk! Ahem. A team of five oddly obsessive middle-aged American men, seeking to break the unofficial mileage record set in Japan, recently drove a factory Toyota Prius 1,397 miles on one tank of […]

  • Hybrid Fidelity

    Toyota plans 10 new hybrids, invites automakers to eco-summit Toyota is developing 10 new hybrid models and aims within the next few years to be selling 1 million of the gas-electric vehicles annually worldwide. That, says the company’s U.S. head, Jim Press, will mean about 600,000 new Toyota hybrids each year on American roads, including […]

  • Meet the world’s first hybrid-cab driver

    Like any self-respecting cabbie, Andrew Grant has a talent for small talk. But when the conversation turns to his prized 2004 Toyota Prius, things get a bit more animated. Andrew Grant. “Gave Cameron Diaz a lift once,” he says matter-of-factly, leading me toward the Vancouver curb where the curvaceous car is parked. “Oh, yeah? What […]

  • Milenko Matanovic, community-based planner, answers questions

    Milenko Matanovic. What work do you do? I run a nonprofit organization called Pomegranate Center. We specialize in involving people in creating gathering places, thereby integrating art into the fabric of the community. We help develop plans for neighborhoods that are safe, humane, environmentally excellent, and filled with character. I founded Pomegranate Center in 1986 […]

  • Gas-Muzzler

    EPA holds back negative report on U.S. auto fuel efficiency According to a report not released Wednesday by the U.S. EPA, loopholes in U.S. fuel-economy standards let automakers produce cars and trucks much less fuel-efficient than models 20 years ago. On Tuesday, the same day the long-debated energy bill emerged from congressional negotiations, EPA opted […]

  • Hail the Cabs!

    Hybrid taxis to hit the streets of New York City this fall Six different hybrid models will debut in New York City’s taxi fleet this fall, thanks to a recent vote by the city’s Taxi and Limousine Commission. Some commissioners had previously expressed reservations about the leg room (or lack thereof) in hybrids, but after […]

  • Green architect Raphael Sperry answers questions

    Raphael Sperry. With what environmental organization are you affiliated? I’m the president of Architects/Designers/Planners for Social Responsibility, which is a small nonprofit with a national membership and active local chapters in Northern California, Seattle, and New York City. What does your organization do? ADPSR has a broad mission of advancing peace, environmental sustainability, and social […]