Thread by @MLiebreich

So, this Mayday we're still on break between Season 5 and Season 6 of @MLCleaningUp. My guest for Episode 1 of Season 6 is an immense figure in climate finance - find out who it is at the end of this thread. Meanwhile, let's recap the top 12 most popular episodes so far... 1/14

In 12th place it's "Green Trade or Green Tradeoff", with former Australian PM Tony Abbott. Not known for supporting climate action, his is an important voice nevertheless. And we agree that trade is essential to reduce the cost of clean solutions. 2/14
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In 11th place, it's "The Man in Charge of Charging", @PRomano_OG, CEO of @ChargePointnet. Transport is going electric, it's going electric fast, and here's why. 3/14
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In 10th place, former UK Prime Minister Tony Blair, gives us "A Masterclass in Climate Geopolitics". The master-communicator explains why we didn't move earlier on climate change and how developing countries might leapfrog to low carbon solutions. 4/14
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In 9th place it's "The Past, Present & Future of CO2 Emissions" with my great Twitter buddy @Peters_Glen: academic and expert on all things energy scenario-related, co-author of the January 2020 Nature commentary debunking RCP8.5 as business-as-usual. 5/14
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In 8th place, the man who's "Building the Billion-Customer Energy Company", CEO of @OctopusEnergy @g__j. If you use energy services of any sort (and you do), you will not want to miss this episode. TLDR: the world needs more Gregs! 6/14
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In 7th place, it's "Europe's Clean Power Leader", the star that is Francesco Starace, visionary CEO of Italy's utility Enel. Practically the only thing we disagree on is whether mechanical gravitational storage will be a big deal or not. 7/14
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In 6th place it's "Pushing Planetary Boundaries" with Professor @jrockstrom, towering figure in environmental science. Learn about the difference between the decades of Commitment Time to stop emissions, and the centuries of Impact Time if we don't. 8/14
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In 5th place it's Professor @MazzucatoM, celebrity leftie "Mission Economist". We agree on the need to put the economy on a mission footing to eliminate emissions and avert the worst impacts of climate change, but not much else! 9/14
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In 4th place, it's yours truly with Part 1 of my magnus opus, "Separating Hype from Hydrogen", based on my big piece for @bloombergNEF. Here I break down the issues on the supply side of the world's most popular - and most over-hyped - element. 10/14
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In 3rd place, yours truly again with Part II of my magnus opus, "Separating Hype from Hydrogen" - again based on my big piece for @bloombergNEF but integrating my famous #HydrogenLadder. If you love hydrogen unconditionally, you'll hate this episode! 11/14
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In 2nd place it's "A Greener Future Made Possible by Finance", and no one better to explain it than clean finance innovator turned CEO of UK @GFI_green Green Finance Institute, @RhianMariThomas. TLDR: focus on getting the money to the solutions! 12/14
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And now, drumroll... our most popular guest so far was "The Einstein of Energy Efficiency", the one and only, the incomparable, Mr @AmoryLovins! Anyone tells you elegant, efficient energy solutions are not sexy, just point them to this episode! 13/14
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Before I reveal the guest for Episode 1 of Season 6 of @MLCleaningUp, I just want to give a few other guests an honourable mention. First up, Professor Julie Klinger, @Prof_Klinger, with "Rare Earths, Real Insight". Unmissable wisdom.
13a/14
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Second bonus shoutout goes to @bertrandpiccard, balloonist and @solarimpulse pilot. This early episode, recorded in in a room in his house filled with memorabilia of his grandfather's ballooning and father's submarining, didn't get enough views. 13b/14
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Third bonus shout-out, an extraordinary conversation with Ban Ki Moon, 8th Secretary General of the UN, in which he insisted that climate change was so urgent that we should deal with it first, and human rights later. Not a view I can endorse. 13c/14.
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Fourth bonus shout-out, tree-planting climate activist @lizwathuti, sister-in-arms of @GretaThunberg, "Planting the Seeds of Inspiration". An extraordinary and articulate advocate for Africa and the planet, a voice we need to hear. 13d/14
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Fifth bonus shout-out, superwoman Professor @emilyshuckburgh, "Maths, Models and Melting Ice". Mathematician, communicator, polar researcher and adventurer, Emily does it all. 13e/14
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Sixth bonus shout-out, an episode that deserved more attention (TBH most episodes do!) was "Waging War on Climate Change" with Lt Gen @RNugee, author of the UK military's climate strategy. Even before #Ukraine, he explained why tanks are history. 13f/14
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Seventh and final bonus shout-out, the last episode of Season 5 has not had time yet to make it into the top 12. "Free Solar" is the most joyous, fascinating, inspiring conversation with @AlexHonnold, star of #FreeSolo and solar social entrepreneur. 13g/14
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And now, time to announce the star guest for Episode 1 of Season 6 of @CleaningUp. And... drumroll... it's UN Special Envoy on Climate Action and Finance, initiator of @FSB_TCFD, co-chair of #GFANZ, former Governor of the Bank of Canada and the Bank of England, Mark Carney! 14/14