IN this ClinateGenn episode I am speaking with Dr Mike MacCracken, a pioneering climate scientist whose research on atmospheric physics and global climate change has significantly advanced our understanding of human impacts on the climate system. His leadership roles at Lawrence Livermore National Laboratory and the US Global Change Research Program established him as a key figure in climate science. As chief scientist for the Office of the US Global Change Research Program, he played a crucial role in advising multiple US administrations on climate science and policy.In this episode we explore counter and cross-over views to opposition to solar geoengineering. With great respect to experts on all sides of this discussion– Mike offers some compelling reasons as to why we cannot just denounce proposals to cool the planet.This is at a time when the UK government is significantly funding research into solar geoengineering. With such a split in views on this topic, I hope you take the time to consider what Mike says, and also what Professor Raymond Pierrehumbert says in a previous episode, in order to inform your own perspective.In the next episode I’ll be speaking with Alexander McDonald, a former head of US National Oceanic and atmospheric Agency, NOAA, who is the leading proponent behind SuperGrid’s for supplying the world with clean abundant electrical energy– without which, all our dreams of the future will fail.Thanks to all subscribers. Please do like and share and feedback in the comments. I try to respond to as much as I can.