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Episode 771 Nanobubbles
John Macdonald is an Australian who invents things like bubbles to save the world. The big ones reflecr sunshine away, cooling and ocean and letting ships slide easily; the tiny ones last longer.
Project Save the World's Podcast
Project Save the World posts videos, podcasts and audio forums, plus reviews and articles here about them, and we publish our newsletter, Peace Magazine. Our podcast are all about serious global threats (war and weapons, global warming, famine, pandemics, radioactive contamination, cyber risks including AI, governance and human rights, economics and civil society challenges) and how to solve them.
Project Save the World posts videos, podcasts and audio forums, plus reviews and articles here about them, and we publish our newsletter, Peace Magazine. Our podcast are all about serious global threats (war and weapons, global warming, famine, pandemics, radioactive contamination, cyber risks including AI, governance and human rights, economics and civil society challenges) and how to solve them. 
