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Jeremy Clarkson is, among other things, a wonderfully entertaining writer, but it's no secret that he hates hybrids with a passion. In his most recent review of the new BMW 535i, the new sedan doesn't even get mentioned until halfway through the article (typical Clarkson), and begins with a rant about the "green-eyed monster," the horror of catalytic converters and how much time is wasted on engineering electric motors.

Tech Watch is a show about how NASA applies its space-based research to help solve Earth-bound problems. In the segment we've pasted after the jump, we learn about technology originally developed for space lasers that's now being used to make a new kind of catalytic converter. Unlike regular cars, which must warm up before they can clean a car's exhaust gases, NASA's catalytic converter works at low temperatures and could cut a vehicle's pollution by thirty percent.