Open letter to Michael Moore & Jeff Gibbs
Mayan Coba pyramid Michael, I share the direction of the theme of Jeff Gibb's and your recent film Planet of the Humans. I think many criticisms of the film are because you touched some raw nerves - and rightly so, IMHO. There are others that are valid. I do wish you had not put so much emphasis on the lack of efficiency of a certain type of solar panel - it created an open goal for your critics. It does not matter whether a panel is 8% efficient or 24% efficient. What matters is whether over the panel's lifetime, how many times it can pay back any carbon emissions generated in making the panel. The ultimate efficiency limit of photovoltaics is set by some physics first discovered by Albert Einstein. https://www.sciencedirect.com/science/article/pii/S2542435117301782 They are unlikely to exceed about half the theoretical limit - 57% conversion efficiency - but, unlike fossil-fuelled generators, this does not matter. What matters, according to this guy , and...