David Mitchell is a climate change scientist who is exploring the possibility of reducing global warming by seeding cirrus clouds at the poles during the winter months, thereby allowing some of the infrared radiation under to atmospheric blanket to escape into outer space. Paul Beckwith is a climatologist who holds regular video lessons about developments in global warming. For the video, audio podcast, transcript and comments: https://tosavetheworld.ca/episode-615-thinnning-icy-clouds.