Cleaning Up. Leadership in an age of climate change.

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.

Michael chats with Saul Griffith, Australian-born engineer, inventor, advisor, author and 2007 MacArthur "Genius". He specialises in clean and renewable energy technologies, and has founded a dozen technology companies across 20 years in Silicon Valley, as well as authoring 3 books, including `Electrify', and `The Big Switch'. He has recently turned his attention from Otherlab, his

Bryony speaks to two fascinating guests, both specialising in methane emissions, their causes and impacts: Dr. Sebastien Biraud and Sharon Wilson. Dr. Biraud is a biogeochemist, leading the Climate Sciences Department. Sebastien's work has taken him to the tropical rainforests of the Amazon, the great plains of the United States, and the Arctic tundra. He is currently co-leading/le

This week, Michael presents the second part of his two-parter for Bloomberg New Energy Finance, exploring the bear and bull cases for the net zero transition. This week is the bull case: the "5 superheroes" of the transition, 5 forces/trends even more powerful than last week's "5 horsemen", which can prevail in the challenge of rapidly decarbonising the global economy. The 5 superh

Michael is solo this week on Cleaning Up, outlining the "5 horsemen" of the net-zero transition - the five greatest obstacles to the net zero transition. These 5 horsemen are: the economics of energy solutions, the electrical grid, the demand for critical mineral, political and social inertia, predatory delay by the powerful incumbents. This audioblog is based on Michael's Bloomber

Bryony returns with Bonny Simi, President of Operations at Joby Aviation, where she's working on bringing to market a new civilian electric VTOL (eVTOL) aircraft. Prior to joining the team at Joby, Bonny held several operational and strategic roles at JetBlue Most notably, she founded and led JetBlue Technology Ventures, investing in improving the travel, hospitality, and transport

Michael returns to talk with legendary educator and inventor, Donald Sadoway, Professor Emeritus of Materials Chemistry at MIT. After earning his PhD in chemical metallurgy in 1977 at the University of Toronto, he joined the faculty at MIT where he spent 44 years. For 16 of those, he taught 3.091 (Introduction to Solid-State Chemistry)—and his animated lectures, peppered with ref

Tamsin Lishman joins Bryony this week to talk heat pumps. Tamsin is CEO of Kensa Group, a Cornwall-based manufacturer and installer of ground source heat pumps. Kensa is the UK's only manufacturer of ground source heat pumps. Both air source and ground source heat pumps are rapidly growing technologies, and Tamsin believes that Kensa's heat pumps can - and will - be deployed to ele

Michael sits down this week with Lauri Myllyvirta, co-founder and lead analyst at CREA - the Centre for Research on Energy and Clean Air. After working as a campaigner and then as an analyst at Greenpeace, Lauri helped set up CREA, an NGO that produces research reports on the trends, causes, health impacts, and solutions to air pollution. Importantly, CREA makes extensive reference

This week, Bryony is back, this time to talk to David Wallace-Wells. David is an American journalist and author who often writes about climate change. His 2017 article "The Uninhabitable Earth" for New York Magazine was the publication's most-read article in history. David then turned the article into a book of the same name, which was chosen as Book of the Year, 2019, by The Sunda