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This week at TreeHugger: French cars gets environmental labels like refrigerators; Ford has taken up a "keen" interest in plug-in hybrids; from France comes the Maranello4 local electric vehicle; how to build your own solar-powered jalopy; kicking the oil habit; Chevron getting its feet wet in the biodiesel business; a model fuel-cell car for the kids or the classroom; hydrogen fuel from bio-trash; and L.A.'s brave bike warriors.

[TreeHugger's Perspective Shift roundup appears every Wednesday]