Getting cooler A few months ago, I wrote a series of unflattering columns on current trends among the Gaia worshippers. The last of these opened, “The more I think about ‘global warming’, in light of the most recent United Nations report, the more confident I become in averring that it is a fraud, a political stunt, a criminal imposture, that every intelligent journalist should be helping to expose.” Since then, I have been bombarded with correspondence both favourable and unfavourable. I notice the former comes chiefly from those with plausible scientific backgrounds, the latter almost entirely from those whose ignorance...