Backlight - Season 22 Episode 5 Planetcoolers

Are there emergency solutions to reduce global warming? And what risks do they entail? Stephane Kaas travels to the American west coast, the Arctic Circle and the North Sea and speaks to scientists and start-up entrepreneurs who are trying to cool the earth with innovative technologies. Who decides which techniques we choose to try to cool the planet? Including: Vesta Earth, David Keith, Asa Larsson Blind, Emilie Reuchlin, Thomas Rammelt, Claudia Wieners and Jeroen Oomen.