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The future of U.S. climate policy may depend on things getting dramatic.

Donald Trump does not care much about climate change. By which I mean not just that he does not believe the warming of the planet is a problem, but also that the entire subject is far from the top of his priority list. Unfortunately, that makes his incoming administration even more dangerous.
The implied chaos of the second Trump term is only beginning. In some cases, the operative question is “Is he really going to do that?” Will he actually deport 15 million people, or put a 20% tariff on all imported goods, or prosecute his political opponents?
But when it comes to climate, Trump has offered no attention-grabbing proposals or bizarre promises. He said he wants to “Drill, drill, drill,” but we’re already drilling more than we ever have before. He has a weird obsession with homicidal windmills (“They ruin the environment, they kill the birds, they kill the whales”) and a contempt for electric cars, it’s true. But the real hazard lies in the agenda of those who will run key departments in his government, doing things Trump barely takes notice of.
This may seem counterintuitive to those who view Trump as a uniquely malign force, pushing the federal government in new and disturbing directions. But Trump only cares about a few things — trade and immigration are his primary policy areas of interest, and much of his days will be spent plotting revenge against his enemies — and climate isn’t one of them.
So far, the Trump appointees with influence over climate policy are not the kind of figures who will grab headlines; Americans are unlikely to develop strong opinions about Lee Zeldin (the pick for EPA Administrator) or Doug Burgum (who will be Secretary of the Interior). Below them will be a cadre of unknown and unnoticed officials determined not just to undo every bit of climate progress that occurred under Joe Biden, but also to go much further, purging scientists, stopping environmental enforcement, opening up federal land to fossil fuel production, eliminating pollution regulations, and shutting down every possible office with “climate” in its name or its mission.
So why would it be better if Trump were paying attention? Because the only likely restraint on this assault will be if Trump decides it reflects poorly on him.
That brings us to a crude but useful unified theory of Trump policy outcomes. Expressed as an equation, it would look like this:
Outcome = ((Trump impulses + party agenda) x attention)/political risk
To put it in simpler terms, the relevant questions are: What does Trump want? What do the people around him want? Is this something Trump cares about? And what are the political risks involved?
As an example, let’s take the idea of repealing the Affordable Care Act, which Trump tried and failed to do in his first term. His impulse was to destroy the ACA because it was signed by Barack Obama, whom he hates. His party would also like to destroy the ACA. But Trump himself is not all that interested in the issue of healthcare; he couldn’t be bothered to come up with a plan to replace the ACA, though he regularly promised “something terrific.” Because it’s such a high-profile issue, it won’t move forward without his attention.
Finally — and most importantly — the political risk of repealing the ACA is incredibly high because it is very popular. Repealing it would be cataclysmic for the healthcare system, leading tens of millions of people to lose their health coverage. Put it all together, and the likelihood that Republicans will achieve their longtime goal of ACA repeal is very, very small.
Now let’s plug climate into the equation. Trump’s impulses are uniformly detrimental, but also vague. He told oil executives they should raise him a billion dollars because he’ll give them whatever they want, but if you asked him what specifically it is they want, he probably couldn’t tell you with any specificity.
The Trump officials who will work on environmental issues know exactly what they want — but most of it won’t attract much attention, from the president or the public. When they start gutting PFAS regulations and methane emissions rules, neither Trump nor the average voter will have any idea.
One exception has already been teed up: It now appears that Republicans will try to kill the electric vehicle tax credit. If he wanted to, Elon Musk could stop this: If he told Trump it’s a bad idea, Trump would instruct Republicans in Congress to keep the credit, and it would be most likely be safe. But Musk is of the opinion that while ending the credit might hurt Tesla sales in the short run, his competitors will suffer even more, perhaps getting out of the EV business altogether.
There could be a fight over EV credits when Congress takes up the issue, and it’s even possible that Trump would step in and tell his party to leave them alone if he decided there would be too much of a backlash that would harm him politically. It’s highly unlikely, but the fact that one could at least imagine how it would happen shows how the preferences/attention/political risk dynamic operates.
But to repeat, EV subsidies are the exception of a climate-related policy that will garner some press coverage (though even that may be limited, since the repeal of the tax credits will be part of a gargantuan reconciliation bill with lots of other contentious ideas in it). Most of what happens at the EPA and the Departments of Interior and Energy, where pro-fossil fuel officials will labor every day to undermine environmental protections, will pass by with little notice.
So climate advocates face a difficult task: If they can raise the salience of the climate issue and make a particular Trump administration climate policy unpopular, it would become possible that Trump will notice, perceive some political danger in what his government and Congress are doing, and act to restrain them, for no reason other than his own self-interest.
It’s not much to pin your hopes on, and the idea that Trump himself could be the force of moderation in an administration hell-bent on reversing progress on climate seems crazy. But this is going to be a crazy four years.
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The spinoff of Lawrence Livermore National Lab has a new 10-point plan to get onto the grid by the 2030s.
One of fusion energy’s newest startups, Inertia Enterprises, is betting that the fastest route to commercial fusion runs through one of the field’s oldest ideas. The company, which raised a $450 million Series A earlier this year, plans to build a power plant based on the laser-driven fusion system pioneered at Lawrence Livermore National Laboratory’s — the only tech yet to have produced more energy from a fusion reaction than it took to initiate it. Now, Inertia has shared its commercialization roadmap exclusively with Heatmap, detailing the 10 near-term capabilities it must demonstrate before this landmark experiment can become a grid-scale power plant by the mid-2030s.
The roadmap offers a route from the national lab’s impressive but commercially impractical fusion demonstrations to an economical power plant capable of producing electricity for the grid. At its core are a set of milestones — mostly aimed at developing cheap, mass-manufacturable components — that Inertia says it must clear before those individual systems can be integrated into a working plant. This road is not necessarily linear, however, as various teams will likely be working on many of these goals simultaneously.
At least the physics of Inertia’s approach are already proven, the startup’s CEO Jeff Lawson told me, pointing to the fusion experiments at Lawrence Livermore’s National Ignition Facility as a proof-of-concept. The lab’s demonstration of net energy gain caps more than six decades and $30 billion (in 2026 dollars) of U.S. fusion research. The remaining challenges, he argued, are all engineering-related, requiring “elbow grease, hard work, and smart people” rather than breakthroughs in fusion science.
"It seems to us like a startup or a commercial company of any variety should be focused on commercializing a proven scientific result, as opposed to actually trying to demonstrate the basic science to begin with," Lawson told me. Basic science, he argues, is better left to national labs and universities, where researchers can pursue "unbounded problems" that don’t align with the expectations and timelines of venture-backed startups.
Indeed, no fusion startup has yet achieved scientific breakeven, the milestone Lawrence Livermore first hit in 2022, and has since repeated numerous times. But leading players such as Commonwealth Fusion Systems and Helion Energy maintain that it’s only a matter of time before they validate the physics behind their own reactor designs, which they claim will be highly cost-competitive.
Lawson, on the other hand, readily acknowledged that Lawrence Livermore’s tech is uneconomical in its current form. His bet is simply that the more predictable path to a commercial reactor is to drive down the cost of the lab’s validated fusion approach, known as inertial confinement. This system relies on high-powered lasers firing at a millimeter-scale pellet of fusion fuel, compressing it to extreme temperatures and pressures until the atoms fuse. Today, the National Ignition Facility makes each individual fusion target by hand, a workable solution given that it only uses about a dozen per year.
That production model, however, isn’t remotely plausible for a grid-scale power plant. Because each fusion reaction lasts just a fraction of a billionth of a second, a commercial facility must fire its lasers at a fresh target about 10 times per second to generate continuous electricity — requiring the production of hundreds of millions of targets each year.
Scaling production to roughly a million pellets per day and making them inexpensive enough for commercial operation without compromising the strength or precision required for fusion ignition is central to Inertia’s roadmap. That includes goals five, seven, eight and nine — industrializing the manufacturing of the carbon shells that hold the fusion fuel, making the thin films that hold those carbon shells both durable and cheap, scaling up and automating fusion target assembly, and speeding up how fast targets are filled with the requisite deuterium-tritium fuel.
The other central focus of the roadmap is the laser system, which will ultimately consist of 1,000 individual units operating in concert to compress and heat the fusion fuel. Key priorities include reducing the system’s cost (goal two), dramatically increasing its firing cadence (goal three), and bolstering its durability to withstand high-intensity operations (goal four). Goal six also complements these efforts, calling for the development of a control system capable of tracking moving fusion targets to precisely align each laser shot.
Goals one and 10 bookend the journey with some broader milestones. The first focuses on increasing the fusion target’s energy gain — the ratio of fusion energy produced to laser energy delivered — to more than 25 times ignition. Today, the National Ignition Facility’s best-performing laser shot has yielded a gain of just over four times what it took to start the reaction. Goal 10 then zooms out to the ultimate objective: integrating all these technologies into a commercially viable power plant that can deliver either electricity or industrial heat to end customers.
To reach that point, Inertia has embarked on an industrial engineering hiring spree, recruiting folks with experience taking complex hardware systems from prototype to mass production, “not unlike the processes that are used in the semiconductor or consumer electronics world,” Lawson explained. The company has been making progress on its component development goals since the beginning of the year, he told me, and expects to announce the successful demonstration of a few of these milestones in the coming months. Lawson ultimately expects Inertia to complete the core components of its laser and target manufacturing systems by the middle of next year.
The team will spend the next two to three years integrating these individual pieces into two fully operational subsystems, a prototype laser system and a target manufacturing line. Around 2030, the company will begin combining those subsystems into a first-of-a-kind fusion power plant, which will also serve as the proving ground for the target chamber, tritium fuel breeding system, and power conversion system that turns fusion heat into electricity. By the middle of the next decade, Inertia aims to be generating power from this first plant, setting the stage for the company to build and connect additional grid-scale commercial power plants.
There are plenty of engineering trade-offs that the company will have to solve for. Take the decision around how to size the target chamber, for example. “If you make it bigger, your walls have an easier time and survive longer, but it’s more expensive. If you make it smaller, your walls have a tougher time because they’re closer to all the heat and energy that the fusion reaction is creating, but now your power plant costs less to build.”
But to Lawson, this represents exactly the type of problem Inertia was built to solve: complex engineering issues that come to the fore once scientists have demonstrated the fundamental physics are sound. He thinks other fusion companies may someday reach this stage, as well — though he’s unwilling to hazard a guess on exactly what approach or startup is best positioned to do so.
“There have been generations of scientists who’ve made their predictions about fusion energy and gotten it wrong,” he told me. “I’m not going to pretend to be smarter than them. All I’m here to say is, just knowing that one did work, we can commercialize it.”