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Want to use your gifts to help the climate? Here’s where seven climate advocates are donating.

Fighting for clean air and water. Accelerating the green energy transition. Centering economic and racial justice. Engaging future generations of climate innovators.
Nonprofits across the U.S. and around the world are tackling the problem of climate change in zillions of different ways. In recognition of the scope of their work, we at Heatmap are starting a new tradition for Giving Tuesday — asking some of the most prominent voices in the climate space where they would donate this year.
The answers they gave us are varied, exciting, and urgent, with a cause for every interest and concern. Learn how to donate or get involved with an effort close to your own heart, below.
What UPROSE does: Organizes the multiracial, multi-ethnic, multi-cultural population of Sunset Park, Brooklyn to promote sustainability and climate justice.
How you can support UPROSE: Get involved or donate here.
Where Yeampierre would donate this year: NYC Environmental Justice Alliance; NY Renews Climate; and Climate Justice Alliance.
Why: “All three of these organizations have a long and continued track record of shaping policy, base building, and operationalizing a just transition. All are frontline-led and center racial justice and equity in all aspects of their operations. All have changed the landscape and are central to decision-making on all things climate.”
What Generation180 does: Mounts public campaigns for electrification with relentless positivity.
How you can support Generation180: Donate here.
Where Wertz would donate this year: Hollywood Climate Summit.
Why: “This holiday season, I’d consider giving to Hollywood Climate Summit for their important climate communications work. Hollywood is an extremely powerful industry, and for the past four years, the annual Hollywood Climate Summit has served as an urgent call to action for the entertainment industry to address the climate emergency through a compilation of think tanks, workshops, and activities. The climate movement needs to change hearts and minds, and HCS is encouraging the entertainment community to help us achieve the cultural shift we need to advance an equitable, sustainable future.”
What the Indigenous Environmental Network does: Draws on the history of indigenous peoples to empower Native groups working to protect their homelands.
How you can support the IEN: Donate here or explore other ways to support the IEN.
Where White would donate this year: Tonatierra
Why: “We would love to spotlight the incredible work of Tonatierra. They are a family-based organization lifting up the grassroots from the local work on the ground to the United Nations. Sadly, they recently lost their co-founder, Tupac [Enrique Acosta].
“The work of Tonatierra in lifting up Indigenous communities over the past decades has been tireless and selfless. They fight for Indigenous Peoples community empowerment bringing together Indigenous people from the north and south in the fight for justice and human rights all within the framework of the protection of Mother Earth as we are all connected to the land.”
What the Rainforest Alliance does: Leverages business incentives to protect irreplaceable ecosystems — and the communities that rely on them.
How you can support the Rainforest Alliance: Get involved or donate here.
Where Katz would donate this year: Fundación Proyecto Tití and The Billion Oyster Project
Why: “Fundación Proyecto Tití works to stop deforestation and protect the cotton-top tamarin monkey. Also known as the tití, these one-pound primates are only found in the forests of Colombia, but deforestation is destroying their already diminished habitat. Only about 7,000 titís remain in the wild. The organization is effective in part because it works so well with the local community to protect endangered forests and replant degraded lands. The group has a U.S. sponsor, so all gifts are tax-deductible.
“The Billion Oyster Project is a growing New York-based conservation organization working alongside the Harbor School on Governor’s Island to clean up the New York estuary, once home to the largest number of oysters in the world. The Billion Oyster project not only grows oysters, [it] also helps everyone better understand the connection between clean water, biodiversity, and the food we eat. If Billon Oyster is successful — and they are well on the way — in the near future, all New Yorkers will have cleaner rivers and more wildlife thriving throughout the area.”
What SELC does: Defends the local environment in court, using the law to help move the U.S. South toward a more sustainable future.
How you can support SELC: Get involved or donate here.
Where Campaigne would donate this year: Memphis Community Against Pollution
Why: “Memphis Community Against Pollution has done some of the most impressive organizing around in its quest for environmental justice for Black communities in Southwest Memphis. The organization played David as it slayed the Goliath Byhalia crude oil pipeline, then worked successfully to force the closure of another facility that had been releasing toxic, cancer-causing pollution for more than four decades. MCAP has now focused its fierce attention on a climate behemoth: the quasi-federal utility TVA, which is proposing one of the largest methane gas buildouts in the country, a move that would lock the region into fossil fuels for decades to come.”
What Rewiring America does: Teaches U.S. homeowners about the tangible benefits of clean electricity.
How you can support Rewiring America: Get involved or donate here.
Where Young would donate this year: Community-based organizations like Baltimore’s Civic Works
Why: “Changing a handful of machines in our homes and driveways is one of the most important things you can do for the planet. The Inflation Reduction Act and climate philanthropists are accelerating this work at the national level, but for Giving Tuesday, we say go local. Community-based organizations with longstanding, personal connections and deep knowledge of the local landscape are often some of the best-positioned to advance electrification thoughtfully and equitably. This giving season, find an organization working to increase resiliency and improve the quality of life for their community by weatherizing low-income homes, providing financial assistance to install heat pumps, or advocating for local government action to help strengthen building codes and gain access to solar or EV charging.”
What the CATF does: Advocates for climate technologies to decarbonize the global energy system.
How you can support the CATF: Donate here or explore other ways to support CATF.
Who Shaheen would donate to this year: Western Resource Advocates, the Center for Applied Law and Policy, and ClearPath
Why: “We appreciate the work the following organizations are doing to advance effective, pragmatic solutions to climate change. In the U.S., we'd like to showcase Western Resource Advocates, which drives evidence-based solutions to the climate crisis, protecting and sustaining the environment, economy, and people of the interior West; the Center for Applied Law and Policy, which seeks to further innovation in environmental law and policy; and ClearPath, which develops and advances policies that accelerate innovations to reduce and remove global energy emissions.”
What RMI does: Brings cutting-edge research and analysis to business, governments, and the public to build a carbon-free future.
How you can support RMI: Explore ways to give here.
Where Singh would donate this year: Relp
Why: “Relp’s work not only addresses the pressing energy challenges in developing nations but also holds the potential to revolutionize the renewable energy landscape, forging a path toward a greener and more sustainable future for all. Their mission creates a ripple effect in the renewable energy sector, offering a way to scale renewable investments in regions that need them the most. Their comprehensive grasp of renewable energy markets combined with their ability to generate investment opportunities [that were] previously thought infeasible transforms what was once seen as unattainable into achievable milestones.”
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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.”