Guardian: If you thought there was a machine that could magically remove carbon dioxide from the atmosphere and bury it underground, would you be less likely to worry about reducing your own carbon footprint?
The question is not entirely hypothetical. Geoengineering is the catch-all term for a suite of technologies that could one day be used to alter the Earths climate and combat global warming. Most of them are unlikely to ever see the light of day: they are considered too risky, too unpredictable, or...