This week James catches up with world-renowned climate scientist and science writer, Dr. Kate Marvel. 

Kate is research scientist at NASA’s Goddard Institute for Space Studies and a professor at Columbia University’s Department of Applied Physics and Mathematics. 

One of the reasons for inviting Kate on the show was to get to the bottom of how a climate model works. How can we know with any certainty what we are doing to the planet – and why are there still some things that we do not know for sure? What role do the oceans play? Why a hotter planet is more conducive to natural disasters? What are the differences between a world that experiences a 2°C temperature increase as opposed to a 5°C temperature increase?

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