For more than 30 years, a heterodox group of scientists have proposed injecting sulfate aerosols into the stratosphere to reflect sunlight away from Earth, thereby cooling the atmosphere and reversing climate change.

But actual research into the idea has remained taboo, or at least the province of university and government labs. Then, last year, Heatmap broke the story of an Israeli-American company named Stardust Solutions that had raised $60 million to develop a new solar geoengineering technology. This system would be easier to control and track than the traditional approach to geoengineering, it claims.

On this episode of Shift Key, Rob is joined by Yanai Yedvab, the cofounder and CEO of Stardust. They discuss why Stardust is researching geoengineering now, whether a for-profit company belongs in the space, why Yanai believes Stardust’s particles are superior to sulfate aerosols, and whether Stardust has or will ever conduct outdoor experiments.

Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.

You can find a full transcript of the episode here.

Mentioned:

Rob’s initial story on Stardust: Stardust Solutions, a Geoengineering Startup, Raises $60 Million to Build a Solar-Reflecting System by 2030

Stardust’s new governance commitments

What we know about Stardust’s tiny spheres

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This episode of Shift Key is sponsored by ...

Tandem PV is the leader in perovskite solar technology. We’re building the most efficient and durable perovskite solar panels on the market at our factory in Freemont, California. Learn how we're restoring U.S. leadership for the next era of solar manufacturing at tandempv.com.

Music for Shift Key is by Adam Kromelow

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It has been a hard few years for climate tech. But we recently got a bright spot: Earlier this month, Gigascale Capital announced it had raised $250 million to build the physical infrastructure driving decarbonization. That was notable in part because Gigscale’s founder is Mike Schroepfer, Meta’s former chief technology officer, who has gone deep on climate tech since leaving the company in 2022.

On this episode of Shift Key, Mike joins Rob to discuss why Gigascale chose this moment to raise $250 million, what’s greenwashing (and what’s not) in AI, what the American manufacturing industry does better than China’s, and why Gigascale has not engaged in “climate hushing.”

Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.

You can find a full transcript of the episode here.

Mentioned:

Previously on Shift Key: What J.P. Morgan’s Chief Climate Advisor Is Telling Energy Startups

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This episode of Shift Key is sponsored by ...

Heatmap Pro brings all of our research, reporting, and insights down to the local level. The software platform tracks all local opposition to clean energy and data centers, forecasts community sentiment, and guides data-driven engagement campaigns. Book a demo today to see the premier intelligence platform for project permitting and community engagement.

Music for Shift Key is by Adam Kromelow.

Hosted on Acast. See acast.com/privacy for more information.

When Iran closed the Strait of Hormuz earlier this year, experts projected oil prices would go to $200 a barrel. But then… they didn’t. In fact, while gasoline prices rose in the United States, and Europe and Asia suffered higher costs, the resulting energy crisis wasn’t even as bad as what followed Russia’s 2022 invasion of Ukraine.

Why? China. The country seems to have absorbed the costs of Trump’s war of choice by releasing hundreds of millions of barrels from its strategic stockpile. On this episode of Shift Key, Rob is joined by Rory Johnston, an oil markets researcher and the author of the Commodity Context newsletter. They discuss China’s massive (and quiet) intervention, why it’s “the most important thing we learned” from the Iran War, and what it means for the future of energy and geopolitics.

Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.

You can find a full transcript of the episode here.

Mentioned:

China Oil Demand Doubts, Rory’s 2023 article about Chinese strategic stockbuilding

Previously on Shift Key: Why the Iran Ceasefire Hasn’t Ended the Energy Crisis, featuring Rory

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This episode of Shift Key is sponsored by ...

Heatmap Pro brings all of our research, reporting, and insights down to the local level. The software platform tracks all local opposition to clean energy and data centers, forecasts community sentiment, and guides data-driven engagement campaigns. Book a demo today to see the premier intelligence platform for project permitting and community engagement.

Music for Shift Key is by Adam Kromelow.

Hosted on Acast. See acast.com/privacy for more information.

One of the most interesting projects in carbon removal is doubling down on the industry. Frontier — a coalition of tech, finance, and fashion firms that buy carbon removal credits to support the crucial technology — has secured another $915 million to power its next round of buying. The artificial intelligence giant Anthropic has also joined the coalition alongside its existing members, including Stripe, Google, JPMorganChase, and others.

On this episode of Shift Key, Rob is joined by Hannah Bebbington Valori, who leads Frontier. They discuss the health of the carbon removal industry after a tough few years, how Frontier is changing its buying strategy for its newest round, and why Anthropic entered the coalition.

Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.

You can find a full transcript of the episode here.

Mentioned:

AI IPOs Could Create a Wave of New Funding for Climate Tech

Rob’s most recent story on carbon removal: Carbon Removal After Microsoft

Rob’s original story about Frontier: We’ve Never Seen a Carbon-Removal Plan Like This Before

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This episode of Shift Key is sponsored by ...

Heatmap Pro brings all of our research, reporting, and insights down to the local level. The software platform tracks all local opposition to clean energy and data centers, forecasts community sentiment, and guides data-driven engagement campaigns. Book a demo today to see the premier intelligence platform for project permitting and community engagement.

Music for Shift Key is by Adam Kromelow.

Hosted on Acast. See acast.com/privacy for more information.

Last year, progressives pulled off their biggest state-level win in Georgia in 20 years when voters elected two Democrats to the state’s Public Service Commission, which oversees electricity utilities. It was the first time Democrats had won a state-level office in Georgia since 2006. This year, Democrats have a chance to take an outright majority on the board.

What would that mean — and what has life been like for the state’s newest power regulators? On this episode of Shift Key, Rob is joined by Peter Hubbard, a former renewables developer who won a spot on the Georgia Public Service Commission last year and will defend it this November. They discuss what a regulator’s day-to-day is like, how Georgia is dealing with the data center boom, and whether regulators can ever bring powerful utilities to heel.

Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.

You can find a full transcript of the episode here.

Mentioned:

Previously in Heatmap: Democrats Win 2 Key Energy Races in Georgia

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This episode of Shift Key is sponsored by ...

Heatmap Pro brings all of our research, reporting, and insights down to the local level. The software platform tracks all local opposition to clean energy and data centers, forecasts community sentiment, and guides data-driven engagement campaigns. Book a demo today to see the premier intelligence platform for project permitting and community engagement.

Music for Shift Key is by Adam Kromelow.

Hosted on Acast. See acast.com/privacy for more information.

When New York passed its first major climate law in 2019, climate advocates hailed the work as a milestone: The Empire State vowed to cut its carbon emissions by 40% by 2030, as compared to their 1990 levels, giving it some of the world’s most ambitious subnational climate policy. But last week, Governor Kathy Hochul and the state legislature moved to rewrite key provisions in that law, weakening deadlines and redefining its emissions math.

What happened? And would New York have ever been able to hit its 2030 goal? On this episode of Shift Key, Rob is joined by Emily Pontecorvo, a founding staff writer at Heatmap. They discuss how New York has changed its targets, why it has altered its approach to natural gas, and whether state-level climate goals can survive an age of affordability politics.

Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.

You can find a full transcript of the episode here.

Mentioned:

How New York Is Weakening Its Climate Law, by Emily Pontecorvo

LA Times: After heated debate, California updates key climate limit. Critics say it’s a retreat

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This episode of Shift Key is sponsored by ...

Heatmap Pro brings all of our research, reporting, and insights down to the local level. The software platform tracks all local opposition to clean energy and data centers, forecasts community sentiment, and guides data-driven engagement campaigns. Book a demo today to see the premier intelligence platform for project permitting and community engagement.

Music for Shift Key is by Adam Kromelow.

Hosted on Acast. See acast.com/privacy for more information.

From Heatmap: Exclusive: Local Opposition to Data Centers Explodes in 2026America’s tech companies are transforming the electricity system — building entirely new fleets of new solar panels, batteries, and gas turbines — in order to power what are essentially warehouses filled with cutting-edge chips.

Almost all of those chips are made by Nvidia. On this week’s episode of Shift Key, Rob is joined by Josh Parker, Nvidia’s head of sustainability. They discuss the climate and electricity impacts of artificial intelligence, why Josh is incredibly bullish on AI’s ability to cut carbon emissions and whether it has done so so far, and the company's work with clean energy and fossil fuel companies.

Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.

You can find a full transcript of the episode here.

Mentioned:

Previously on Shift Key: Data Centers Are Creating a New Kind of Battery Monster

Previously on Shift Key: A Skeptic’s Take on AI and Energy Growth

From Heatmap: Exclusive: Local Opposition to Data Centers Explodes in 2026

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This episode of Shift Key is sponsored by ...

Heatmap Pro brings all of our research, reporting, and insights down to the local level. The software platform tracks all local opposition to clean energy and data centers, forecasts community sentiment, and guides data-driven engagement campaigns. Book a demo today to see the premier intelligence platform for project permitting and community engagement.

Music for Shift Key is by Adam Kromelow.

Hosted on Acast. See acast.com/privacy for more information.