This latter position was attacked as patronising and naive by some developing world commentators, including one featured in a Channel Four debate after the programme aired. A number of experts also criticised Lynas's factual errors in contributing to the film. British environmentalist George Monbiot wrote in the "Guardian" that ' and Lynas present themselves as heretics. But their convenient fictions chime with the thinking of the new establishment: corporations, thinktanks, neoliberal politicians. The true heretics are those who remind us that neither social nor environmental progress are possible unless power is confronted. Since writing this, George Monbiot is no longer opposed to nuclear power as an alternative to more polluting sources such as coal.