Bryony and Michael round up the eleventh season of Cleaning Up this week. They explore the themes running through the episodes, from theories of change to innovation, and discuss the things that surprised them, the moments they liked (or didn't) and reasons for optimism for the transition.  Links: Ep149: Material World - Ed Conway: https://www.cleaningup.live/material-world-ep149-ed-conway/ Ep150: Selling Sustainability - Solitaire Townsend: https://www.cleaningup.live/selling-sustainability-ep150-solitaire-townsend/Ep151: Redesigning Mining - Mark Cutifani: https://www.cleaningup.live/redesigning-mining-ep151-mark-cutifani/ Ep152: Can We Have a Habitable Planet? - David Wallace-Wells: https://www.cleaningup.live/can-we-have-an-habitable-planet-ep152-david-wallace-wells/ Ep153: Shedding Light on Energy's Dirty Secrets - Lauri Myllyvirta: https://www.cleaningup.live/shedding-light-on-energys-dirty-secrets-ep153-lauri-myllyvirta/ Ep154: Green Heat (And Cooling) Under Our Feet - Tamsin Lishman: https://www.cleaningup.live/green-heat-and-cooling-under-our-feet-ep154-tamsin-lishman/ Ep155: Extreme Electrochemistry - Prof. Donald Sadoway: https://www.cleaningup.live/extreme-electrochemistry-for-a-sustainable-future-ep155-prof-donald-sadoway/ Ep156: A Magnificent Woman And Her Flying Machines - Bonny Simi: https://www.cleaningup.live/a-magnificent-woman-and-her-flying-machines-ep156-bonny-simi/ A11: The Five Horsemen of the Transition: https://www.cleaningup.live/audioblog-11-net-zero-will-be-harder-than-you-think-and-easier-part-i-harder-1/ A12: The Five Superheroes of the Transition: https://www.cleaningup.live/audioblog-12-net-zero-will-be-harder-than-you-think-and-easier-part-ii-easier/Ep157: The Methane Hunters - Sebastien Biraud & Sharon Wilson: https://www.cleaningup.live/the-methane-hunters-ep157-dr-sebastien-biraud-sharon-wilson/Ep 158: Absolutely Electrifying - Saul Griffith: https://www.cleaningup.live/absolutely-electrifying-ep158-saul-griffith/