Can Scientists Save the World? - Panorama

BBC One Wales HD

11:10 PM to 12:10 AM

Monday 18 November

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Richard Bilton meets scientists working on solutions to climate change. Innovations include mechanical trees that absorb carbon, machines that brighten clouds and a solar reactor that makes fuel from fresh air. The scientists say their inventions have been shown to work at small scale but would need massive investment to reduce the effect of our greenhouse gas emissions. Richard investigates whether they can really make a difference.