ABC Radio National presents material from Big Ideas web and TV to bring you the best public talks, debates and lectures from Australia and around the world. One single audio file of the whole program - good for continuous listening.
June 11th, 2015
Episode 172 of 461 episodes
Geo-engineering a cooler planet. A whole range of scientists are looking at engineering technologies to mitigate climate change. We could for example reflect more solar radiation back into space by making more reflective clouds; or we could trap carbon dioxide out of the atmosphere and bury it underground, to diminish the “greenhouse” effect. Would such technologies work, and would there be side effects? And who would decide whether to do this, and when, if ever, to stop?