From Scotland to the village of Sipson, the site of BAA's planned third runway at Heathrow, environmental activists are fired up. Frustration over December's COP15 cop-out has led many to abandon hope in state-led solutions on climate change and renewable energy. In a poll conducted by treehugger.com, the leading green blog, 48 per cent of respondents, by far the largest group, described the Copenhagen summit as "a big expensive waste of time that failed to deal with an urgent problem". So how best to get that view across?

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