There is little doubt that the damage being done by climate-change policies currently exceeds the damage being done by climate change, and will for several decades yet. Hunger, rainforest destruction, excess cold-weather deaths and reduced economic growth are all exacerbated by the rush to biomass and wind. These dwarf any possible effects of worse weather, for which there is still no actual evidence anyway: recent droughts, floods and storms are within historic variability.

The harm done by policy falls disproportionately on the poor. Climate worriers claim that at some point this will reverse and the disease will become worse than the cure. An acceleration in temperature rise, they say, is overdue. The snag is, the best science now says otherwise. Whereas the politicians, activists and