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Topic: Steel

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[Episode #252] – Steelmaking in the Mid-Transition

Jun 18 2025

On April 12, the British government took control of British Steel under an emergency authorization in order to prevent its last blast furnace from shutting down. Blast furnaces produce primary steel from iron ore and account for about 93% of global primary iron production, but they also generate large amounts of CO2. Alternative, low-carbon technologies are expected to replace them as the energy transition proceeds.

But retiring a technology—especially one as critical to national security as steelmaking—and replacing it with another is a process that should be conducted carefully and deliberately…not on an emergency basis.

This kind of "mid-transition" problem is one our guests have studied in depth. Emily Grubert is an Associate Professor of Civil and Environmental Engineering and Earth Sciences at the University of Notre Dame who previously joined us in Episode #185 to discuss the mid-transition. Joshua Lappen is a historian and engineer working as a postdoctoral research associate with Emily at Notre Dame.

In this conversation, we review the facts of the British Steel takeover, including why letting the blast furnace shut down was deemed to be an unacceptable risk. We examine the options for decarbonizing steelmaking that will eventually displace blast furnace technology. And we consider what impact Trump's global tariff war may have on the transitioning of steelmaking, and what some of the geopolitical implications of that may be for the steel industry in Britain, and the world.

Guest #1:

Emily Grubert is a civil engineer and environmental sociologist who studies how we can make better decisions about large infrastructure systems, particularly related to decarbonization of the US energy system. Specifically, she studies socioenvironmental impacts associated with future policy and infrastructure and how community and societal priorities can be better incorporated into multicriteria policy and project decisions. Grubert is an Associate Professor of Sustainable Energy Policy and, concurrently, of Civil and Environmental Engineering and Earth Sciences at the University of Notre Dame.

On Twitter: @emilygrubert

On the Web: emilygrubert.org

Guest #2:

Josh Lappen is a historian and engineer who studies the growth, collapse, and political economy of infrastructure. In particular, his research focuses on how energy networks shape and are shaped by local environments and political institutions – entanglements that can suggest ways to better manage those systems for just and rapid decarbonization. Josh completed his PhD at the University of Oxford, and is currently a postdoctoral research associate at the University of Notre Dame.

On Bluesky: @jlappen1.bsky.social

On the Web: https://pulte.nd.edu/people/faculty-staff/josh-lappen/

On LinkedIn: https://www.linkedin.com/in/josh-lappen-9a3a76112/

Geek rating: 7

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[Episode #236] – Zero Carbon Industry

Nov 6 2024

Mini Episode

The energy transition is making good progress on several fronts. Renewables are displacing fossil fueled electricity generation. Heat pumps are decarbonizing space heating. Electric vehicles of all sizes are replacing oil-powered cars.

But the world's industrial decarbonization is really just getting started. Industry generates roughly one-third of all human-caused greenhouse gas emissions, so solutions for this sector are critical for the energy transition.

We have made faster progress in decarbonizing electricity, transportation, and heating because it’s easier to replace a handful of dirty technologies with clean alternatives. Decarbonizing industry, however, is a far more complex task, involving thousands of materials, processes, and end products. That’s why they used to be called “hard-to-decarbonize” sectors.

Fortunately, there are clear starting points. More than half of industrial emissions come from steel, cement, and chemicals—which we know how to decarbonize. And there are solutions on the horizon for the rest of industry too.

In this conversation, Jeffrey Rissman, Senior Director of Industry at the San Francisco based think-tank Energy Innovation, walks us through each of the industrial sectors and the solutions for each one. Jeff is the author of a recent book titled Zero-Carbon Industry: Transformative Technologies and Policies to Achieve Sustainable Prosperity, and after listening to this episode, you’ll know just about everything you need to know about industrial decarbonization.

Guest:

Jeffrey Rissman is Senior Director of Industry at Energy Innovation, where he leads the company’s work on technologies and policies to eliminate industrial greenhouse gas emissions. He is the author of Zero-Carbon Industry: Transformative Technologies and Policies to Achieve Sustainable Prosperity (2024) and coauthor of Designing Climate Solutions: A Policy Guide for Low-Carbon Energy (2018). In 2024, Jeffrey was appointed by Sec. Jennifer Granholm to serve on the Department of Energy’s Industrial Technology Innovation Advisory Committee.

Jeff is also the creator of the Energy Policy Simulator, an open-source computer model that quantifies the effects of various energy and environmental policies in combination, predicting outputs such as fuel use, pollutant emissions, financial cost or savings, electric vehicle deployment, power sector structure, and more. Versions of the simulator have been developed for an ever-growing list of countries and regions, in partnership with in-country government agencies or NGOs, accounting for more than 60 percent of the world’s emissions.

Previously, Jeff worked on policies supporting R&D for clean energy and efficiency technologies for the American Energy Innovation Council, where he led a survey of 17 R&D leaders investigating trends, opportunities, and challenges to unleashing private sector energy R&D.

Jeff holds an M.S. in Environmental Sciences and Engineering and a Masters in City and Regional Planning, both from the University of North Carolina at Chapel Hill. He was a Research Fellow for the University of North Carolina Institute for the Environment, where he studied aircraft emissions for the Federal Aviation Administration. Jeff also holds a B.A. in International Relations with honors from Stanford University.

On the Web: https://www.jeffreyrissman.com

Geek rating: 9

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[Episode #194] – Materials Requirements of the Transition

Mar 22 2023

Mini Episode

Energy transition skeptics continue to argue that certain critical minerals and materials, such as "rare earth" metals, place a fundamental limitation on scaling up wind, solar, storage and EVs. But is that true? Or, are these material availability doubts being expressed as a bad-faith tactic to undermine the momentum toward energy transition success?

Until now, we didn't have enough information to make a conclusion about the material demands of the transition in the context of resource estimates and production forecasts. But a recent study published in January 2023 has provided some solid answers. A group of researchers estimated future demand for 17 key clean electricity generation materials in climate mitigation scenarios, and compared these projections with available resource estimates. The study also investigated whether there are any concerns about producing enough of these critical materials to meet energy transition demand.

In this episode, one of the authors of the paper, Energy Transition Show alumnus Zeke Hausfather, walks us through the methodology and the findings, gives us the data, and shows why there don’t seem to be any important limits to material availability for the energy transition. We leave no argument unanswered in this discussion, so if you’ve been concerned about mineral availability, you won’t be when you’re done listening to it!

Geek rating: 5

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[Episode #127] – Hard-to-Decarbonize Sectors

Aug 5 2020

Mini Episode

When it comes to energy transition solutions, wind and solar and big battery projects regularly make headlines, but we don’t often hear much about the hard-to-decarbonize sectors, like aviation, shipping, trucking, cement manufacturing, and steelmaking. Reducing emissions from these sectors is challenging for a number of reasons, but we must find ways to do it, because they account for about a third of global carbon emissions. And fortunately, there is a great deal of effort now being focused on these sectors, through an array of partnerships between governments, non-governmental organizations, and private industry. In this episode, we speak with the CEO of the Rocky Mountain Institute, a clean energy “think and do tank” founded by energy luminary Amory Lovins which has been working on energy transition for the better part of four decades, about some of the ways that we can decarbonize these sectors.

Geek rating: 2

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