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Technology

Let There Be Cloud Brightening

On the return of geoengineering, climate lawsuits, and a cheaper EV.

Sunrise over a mountain.
Heatmap Illustration/Getty Images

Current conditions: Battered Midwest in for more bad weather this weekend • Tornadoes keep hitting the Great Plains • A heat wave in New Delhi that pushed temperatures above 116 degrees Fahrenheit on Friday is expected to last several more days.

THE TOP FIVE

1. Red states challenge climate lawsuits

Nineteen Republican-led states are asking the Supreme Court to stop Democrat-led states from trying to force oil and gas companies to pay for the impacts of climate change. Rhode Island in 2018 became the first state to sue major oil companies for climate damages and has since been joined by California, Connecticut, Minnesota, and New Jersey. The states pursuing legal action against oil companies are trying to “dictate the future of the American energy industry,” the Republican attorneys general argued in a motion filed this week, “not by influencing federal legislation or by petitioning federal agencies, but by imposing ruinous liability and coercive remedies on energy companies” through the court system.

2. Geoengineering experiment could resume in California

A month after ordering researchers to stop a cloud brightening experiment due to health and environmental concerns, officials in Alameda, California, determined that the experiment poses no measurable risk to people or wildlife. They found that the saltwater solution being sprayed into air is similar to saltwater, a naturally occurring aerosol. Alameda’s city council plans to reconsider the experiment based on officials’ findings early next month.

The experiment is one of the first tests of a form of geoengineering intended to reflect more solar energy back into space. Sarah J. Doherty, director of the Marine Cloud Brightening Program at the University of Washington, told The New York Times that the report “supports our own evaluation that this is a safe, publicly accessible way to further research on aerosols in the atmosphere.”

3. Conservation group sues Biden administration over coal pollution rule

The Center for Biological Diversity is suing the Biden administration over its new standards for pollution from coal-fired power plants. The rule, which the EPA finalized last month, curtails coal plants’ discharges of heavy metals into water sources. But it includes exceptions for plants that are slated to retire by 2034. The Center for Biological Diversity called this an “unacceptable” loophole, emphasizing the risks that heavy metal pollution pose to communities and ecosystems. Brett Hartl, the conservation group’s government affairs director, said in a statement that the rule gives the coal industry “a free pass to dump millions of pounds of toxic pollution into this nation’s rivers for another 10 years.”

4. Kia Debuts Cheaper, Boxier EV

On Thursday, the Korean automaker Kia revealed the EV3, a small crossover that will start in the $30,000s when it comes to America next year or the year after. While slower than some of its rivals — Kia says it will go 0-60 miles per hour in 7.5 seconds — the EV3 will boast a range of 372 miles, “which blows away most current offerings, especially in that price range,” Andrew Moseman writes at Heatmap. The EV3 is the latest piece of the grand plan put together by Kia (and its owner, Hyundai) to offer an electric crossover at every price point — and a sign that more entry-level EVs might be coming over the horizon.

5. Native beetle threatens giant sequoias

General Sherman, the world’s largest tree, passed a recent health check by researchers looking for evidence of damage by bark beetles. Both giant sequoias and bark beetles are native to California’s Sierra Nevada range, but the mounting pressures of climate change, including heat, drought, and fire, are weakening the sequoias and leaving them vulnerable to dying from bark beetle infestations. “The most significant threat to giant sequoias is climate-driven wildfires,” Ben Blom, director of stewardship and restoration at Save the Redwoods League, told The Associated Press. “But we certainly don’t want to be caught by surprise by a new threat, which is why we’re studying these beetles now.”

THE KICKER

Researchers don’t fully understand how climate change is impacting air travel, but evidence suggests that instability in the jet stream may be contributing to the rise in clear-air turbulence.


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Climate Tech

Climate Tech Pivots to Europe

With policy chaos and disappearing subsidies in the U.S., suddenly the continent is looking like a great place to build.

A suitcase full of clean energy.
Heatmap Illustration/Getty Images

Europe has long outpaced the U.S. in setting ambitious climate targets. Since the late 2000s, EU member states have enacted both a continent-wide carbon pricing scheme as well as legally binding renewable energy goals — measures that have grown increasingly ambitious over time and now extend across most sectors of the economy.

So of course domestic climate tech companies facing funding and regulatory struggles are now looking to the EU to deploy some of their first projects. “This is about money,” Po Bronson, a managing director at the deep tech venture firm SOSV told me. “This is about lifelines. It’s about where you can build.” Last year, Bronson launched a new Ireland-based fund to support advanced biomanufacturing and decarbonization startups open to co-locating in the country as they scale into the European market. Thus far, the fund has invested in companies working to make emissions-free fertilizers, sustainable aviation fuel, and biofuel for heavy industry.

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COP30.
Heatmap Illustration/Getty Images

Current conditions: The Philippines is facing yet another deadly cyclone as Super Typhoon Fung-wong makes landfall just days after Typhoon Kalmaegi • Northern Great Lakes states are preparing for as much as six inches of snow • Heavy rainfall is triggering flash floods in Uganda.


THE TOP FIVE

1. UN climate talks officially kick off

The United Nations’ annual climate conference officially started in Belém, Brazil, just a few hours ago. The 30th Conference of the Parties to the UN Framework Convention on Climate Change comes days after the close of the Leaders Summit, which I reported on last week, and takes place against the backdrop of the United States’ withdrawal from the Paris Agreement and a general pullback of worldwide ambitions for decarbonization. It will be the first COP in years to take place without a significant American presence, although more than 100 U.S. officials — including the governor of Wisconsin and the mayor of Phoenix — are traveling to Brazil for the event. But the Trump administration opted against sending a high-level official delegation.

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Quino Raises $10 Million to Build Flow Batteries in India

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An Indian flag and a battery.
Heatmap Illustration/Getty Images

In a year marked by the rise and fall of battery companies in the U.S., one Bay Area startup thinks it can break through with a twist on a well-established technology: flow batteries. Unlike lithium-ion cells, flow batteries store liquid electrolytes in external tanks. While the system is bulkier and traditionally costlier than lithium-ion, it also offers significantly longer cycle life, the ability for long-duration energy storage, and a virtually impeccable safety profile.

Now this startup, Quino Energy, says it’s developed an electrolyte chemistry that will allow it to compete with lithium-ion on cost while retaining all the typical benefits of flow batteries. While flow batteries have already achieved relatively widespread adoption in the Chinese market, Quino is looking to India for its initial deployments. Today, the company announced that it’s raised $10 million from the Hyderabad-based sustainable energy company Atri Energy Transitions to demonstrate and scale its tech in the country.

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