Conversation: Some people might argue that the greatest moral challenge of our time is serious enough to justify deliberately tampering with our climate to stave off the damaging effects of global warming.
Geoengineering, or climate hacking, to use its more emotive nickname, is a direct intervention in the natural environments of our planet, including our atmosphere, seas and oceans.
It has been suggested that geoengineering might buy us time to prevent warming above 2C, and that we should look at it seriously...