This podcast episode delves into the controversial topic of solar geoengineering, focusing on Luke Iseman's startup, MakeSunsets, which aims to cool the planet by releasing reflective particles into the stratosphere. While the technology has potential to mitigate global warming, concerns remain about its safety and unintended consequences. The episode highlights the ethical and practical considerations surrounding climate geoengineering, including the need for further research and international cooperation, while also acknowledging the potential benefits of buying time for decarbonization efforts.