Michael’s guest for Episode 121 of Cleaning Up is Rob Miller, Professor of Aerothermal Engineering at the University of Cambridge and Director of the Whittle Laboratory. The Whittle Laboratory is conducting world-leading research in pursuit of making net-zero aviation a reality. 

With the aviation sector looking set to be one of the hardest to abate in the net-zero transition, Michael wanted to know whether electrification or hydrogen represents the best chance to keep the world flying in sustainable fashion. Also on the agenda were the complexities of producing - and defining - sustainable airline fuel, and the scale of the risk posed by aircraft contrails.

Jet-Zero Hero - Ep121: Prof. Rob Miller

Once a week, Michael Liebreich and Bryony Worthington have a conversation with a leader in clean energy, mobility, climate finance or sustainable development. Informative, inspiring and fun!

Cleaning Up is supported by Capricorn Investment Group.

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Last week the leading lights of Europe's electricity industry gathered for the annual Eurelectric Power Summit at the Lagonissi Beach Resort just outside Athens. The conference - under the hashtag this year of #lights on - lasted two days and covered the key issues facing Europe's and the world's power sectors. Two topics in particular stood out: the need to accelerate the build out of transmission, and the pressures and opportunities offered by digitization and AI. At the event, Eurelectric published a brace of reports on these two topics. On the final day of the conference, Michael caught up with Leonhard Birnbaum, Chairman and CEO of German utility and distribution grid operator E.ON and President of Eurelectric, on a sunny and windy terrace just outside the conference centre to discuss all this and more.

#LightsOn - Live from the Eurelectric Power Summit 2024 in Athens - Ep164: Leonhard Birnbaum

China's policies that direct capital towards cleaner industries have been game changing, and this week we're continuing the China theme, sharing two conversations Bryony had earlier this month at a conference at Xiamen University in Fujian Province. China's role in the clean energy transition could not be more important. The think tank Ember's latest report on the state of the global electricity transition states: over half of the world's new wind and solar power capacity last year was added in China, and together with hydro and nuclear, clean electricity in China now meets 35% of their electricity demand. And yet, the scale and the nature of the Chinese economy is so enormous it's hard to grasp, the majority of which is still powered by roughly 1000 gigawatts of coal-fired power stations, half of the global total. The focus of the conference was on a specific lever that could help China further along its decarbonisation path: the repowering of existing coal stations with clean sources of heat.

Ep163: Staffan Qvist & Dr. Yaoli Zhang

In this week's episode of Cleaning Up, we find how much and how much more governments would have to spend for hydrogen to live up to its hype. This audio blog is adapted from a piece Michael wrote at the end of last year for BloombergNEF, entitled "Clean Hydrogen's Missing Trillions", which estimated that hitting the Hydrogen Energy Ministerial target of 90 million tonnes of clean energy by 2030 would require subsidies of at least $2.3 trillion to be on the table right now, while the actual figure at the end of last year was 1/10th of that. Although the figures have changed a bit since then, the message remains the same: the subsidy gap remains in the multiple trillions of dollars. It should not therefore be surprising that the news is full of projects being cancelled and delayed. In fact, that will be one of the main hydrogen stories through to 2030 and beyond.

Audioblog 13: Clean Hydrogen's Missing Trillions

Up this week is Simon Holmes à Court, the Australian investor and philanthropist with a passion for using data to change the world. 

In 2022, the federal elections in Australia delivered an upset, as around a third of the electorate turned their back on the established parties and voted in seven new independent MPs taking the total to 10. Simon was responsible for a crowdfunding initiative - Climate 200 - that supported 23 candidates in all, pledging to act on climate, political integrity and gender discrimination. He remains very involved in the challenge of pivoting Australia from a fossil fuel based economy to a clean energy superpower.

Australia's Political Trim Tab - Ep162: Simon Holmes à Court

How can we build a more united climate movement? What should be the role of geoengineering? And how can indigenous voices be brought into the climate conversation? Bryony puts these questions to model, actor, director, ambassador and businesswoman, Lily Cole.

Jet-Zero Hero - Ep121: Prof. Rob Miller

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