During our Yosemite visit, we were subjected to sanctimonious environmental lectures by park guides who were preachier than a coven of vegans at a meatpackers convention. Everything must be 'sustainable', 'natural' or 'environmentally sound'.
Some of the smugness evaporated when the hybrid bus broke down.
As Nelson Muntz of The Simpsons would say, "Haw, haw. Your greenie technology is useless."
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