“In recent years, too – in fact since 2001 – American meteorologists in particular have realized that over the past few decades the full effects of global warming have been masked by ‘global dimming’. It transpires that atmospheric pollution by particles – variations on a theme of soot – has been reducing the energy input from the sun by an astonishing 30 per cent. The world, currently, is cleaning up the soot – which, technically, is fairly easy to do. Catalytic.”
