May 15, 2023
David Mitchell thought of the idea that thinning cirrus clouds would allow heat to escape from the world, and that the winter clouds at the poles would be the optimum clouds to thin. Blaz Gasparini is, like Mitchell, continuing the research on the matter, largely by modeling. Stephen Salter is working to design a suitable nozzle for marine cloud brightening, so he shares their interest in the properties of clouds. We discuss whether much can be gained at this stage from actual experimentation with either the winter cirrus clouds or brightening the low-lying summer clouds in the near-Arctic. Probably it is better to wait a year or so to see if current research answers some of the preliminary questions that would enable actual small scale experimentation to be worth the steep. costs. For the video, audio podcast, transcript, and public comments: https://tosavetheworld.ca/episode-557-cirrus-cloud-thinning.