Guardian: Many of those who deny that climate change is taking place reached that position as a result of their opposition to windfarms. This, for example, was the route taken by David Bellamy, who stumbled disastrously into the debate a decade ago. During one of our discussions, he set me the following challenge: "Why are the so-called greens backing a cartel of multinational companies which are hell bent on covering some of the best of our countryside with so-called windfarms, which can neither provide...