The General Motors exec behind the Chevrolet Volt electric car hands environmentalists another twig to beat GM with when he reportedly calls global warming "a crock of sh-t."
Bob Lutz, GM's vice chairman for product development, later addresses the uproar on his own blog: "General Motors is dedicated to the removal of cars and trucks from the environmental equation, period. And, believe it or don't: So am I!" -- By Peter Valdes-Dapena, CNNMoney.com senior writer
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