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In short-term it certainly did work for them in terms of creating fear of GMO or nuclear power ("filthy") and promoting the technologies they liked at that moment - wind, solar, organic farming ("pure").
Playing with human emotions never comes without side effects. So now, when someone (like Gibbs and Moore) says "wait, but solar panels are also manufactured using dirty mining" they fall into a trap they set themselves. Suddenly they found themselves on the "filthy" side 😂