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Here’s what we know so far about the Senate, the House, and key local races.
American voters have chosen Donald Trump as their next president — again. The decision will have monumental consequences for the renewables transition, energy prices, and environmental issues. But it was not the only race of this election cycle.
Heatmap has been keeping tabs on 36 of the most important climate elections, from seats in the House and Senate down to local ballot measures and attorneys general. Though this is far from an exhaustive list of races that will touch the climate this year, we hope it’ll help you piece together how and where climate-related issues are resonating with voters around the country.
A few notes on how this list is organized:
Some key races remain undecided as of Thursday morning. While Republicans took control of the Senate, the House is still up for grabs.
Virginia’s 2nd Congressional District
Republican Rep. Jen Kiggans* vs. Democrat Missy Cotter Smasal
Status: 🔴Republican Rep. Jen Kiggans wins
Kiggans, the vice chair of the Conservative Climate Caucus and a Trump ally, won her reelection in a tight race. She beat Democrat Missy Cotter Smasal in a swingy district with a diverse electorate of young voters, a robust LGBTQ community, and many military families. Kiggans backed the Default on America Act to repeal clean energy tax credits and has flip-flopped on her support of offshore wind (Kiggans says she supports it, despite voting to slash IRA incentives for the project) while her opponent had called climate change a crisis in need of “urgent action” and bipartisan solutions.
Governor
Republican Mark Robinson vs. Democrat Attorney General Josh Stein
Status: 🔵 Democrat Attorney General Josh Stein wins
North Carolina Attorney General Stein has won the election for governor. The state suffered one of the costliest storms in U.S. history earlier this year due to the flooding from Hurricane Helene, which drew attention to the divide between the two candidates who’d been running for the state’s highest office. Republican Mark Robinson called climate change “junk science” and said he’d attempt to block history and science from being taught in the first through fifth grades. He’d also said not pursuing the development of fossil fuels is an affront to God, and that he’d attempt to keep the “climate change cabal” in “chains.” By contrast, Stein had proposed a path to reach carbon neutrality in the state by 2050 and has a history of taking on polluters and Big Oil price gougers.
Commissioner of Insurance
Republican Mike Causey* vs. Democrat Natasha Marcus
Status: 🔴 Republican Mike Causey wins
Incumbent Republican Insurance Commissioner Causey has successfully fended off a challenge from the Climate Cabinet- backed state Senator Marcus, who took on Causey on the grounds that he’d approved too many rate increases and was too cozy with the companies he was in charge of regulating. Marcus had pushed for greater investment in home hardening and outraised Causey nearly twice over. While insurance commissioner isn’t the sexiest race, the election drew outsized attention in part because of Nationwide’s decision not to renew thousands of homeowner policies in eastern North Carolina in 2023 due to climate change, and the devastating flooding earlier this year from Hurricane Helene.
U.S. Senate
Democrat Rep. Sherrod Brown* vs. Republican Bernie Moreno
Status: 🔴Republican Bernie Moreno wins
MAGA Republican Bernie Moreno has flipped the seat of three-term Democratic Senator Sherrod Brown. Combined with Republican Jim Justice winning outgoing Democratic Senator Joe Manchin’s seat earlier in the night, Brown’s loss makes it unlikely that Democrats retain control of the Senate. Climate and energy had not played a significant role in the race between Brown and Moreno, though Brown, who once voiced support for a Green New Deal, had broken in recent months with his Democratic colleagues on the IRA’s tax credit for EVs (which he says does not do enough to crack down on imported materials from China and Indonesia), backed overturning the Environmental Protection Agency’s new power plant regulations and tailpipe rules (which are “unrealistic” and a strain on the grid, he said), and joined Manchin in criticizing the Biden administration’s clean hydrogen tax credit. Moreno has stressed that “we need natural gas, we need oil” rather than “this move toward windmills, solar panels.”
Ohio’s 9th Congressional District
Democrat Rep. Marcy Kaptur* vs. Republican state Rep. Derek Merrin
Status: Pending
The race in Ohio’s 9th Congressional District, which includes Toledo and the shores of Lake Erie, is about many things, but it’s also about algae. Kaptur sits on the House Appropriations Committee, where she has supported clean energy-related spending, and she’s also the ranking member of the Energy and Water Development appropriations subcommittee, where she fought for a $1.5 million federal project to combat warming-induced algal blooms in the Great Lakes. Her opponent, Merrin, voted against that bill as a state representative and for laws that would label methane as green energy. She claimed Kaptur and other Democrats’ clean energy pursuits threaten affordability and reliability.
U.S. Senate
Democrat Sen. Bob Casey, Jr.* vs. Republican David McCormick
Status: 🔴Republican David McCormick wins
McCormick flipped the Pennsylvania Senate seat for Republicans in one of the most energy- and climate-centric races of the year. During the campaign, McCormick had painted the incumbent, Casey, as an enemy of fracking by tying him to Kamala Harris’ prior opposition to the industry. Casey, however, has always supported what he calls “responsible fracking,” including the proposed hydrogen hubs in the state (one of which would use fracked gas). McCormick, whose wife sits on the board of Exxon, has said renewable energy is making the U.S. more reliant on materials from China and that we “need to get back to the energy policies under President Trump,” including by repealing the Bipartisan Infrastructure Law and gutting the Inflation Reduction Act.
Pennsylvania’s 7th Congressional District
Democrat Rep. Susan Wild* vs. Republican state Rep. Ryan Mackenzie
Status: 🔴Republican state Rep. Ryan Mackenzie wins
Wild conceded her race Wednesday morning to Mackenzie, a Republican lawmaker who had slammed her repeatedly for voting for the “failed” IRA while on the campaign trail. As a state representative, Mackenzie had also voted against environmental and clean energy measures, including rooftop solar panels for schools. In her concession speech, Wild stressed the importance of the continued fight for a “clean and safe planet.”
Attorney General
Democrat Eugene DePasquale vs. Republican Dave Sunday
Status: 🔴Republican Dave Sunday wins
Sunday had not spoken about climate-related issues during the campaign and didn’t respond to a request for comment on the matter from The Philadelphia Citizen. However the next attorney general of Pennsylvania has an opportunity to pursue climate liability litigation during their term, with Bucks County suing the fossil fuel industry for misleading the public about the dangers of burning oil and gas, E&E News reports. DePasquale, who lost the race, had said he considers environmental justice a top priority.
Referred Law 21
Opportunity: To take a stance on carbon pipelines
Voters in South Dakota rejected a bill passed by their state legislature earlier this year that imposed a number of regulations on potential CO2 pipelines, including a modest $1-per-foot surcharge and requirements about minimum depth. Opponents wary of the carbon capture technology had forced the ballot measure on the law, which they claimed was a giveaway to pipeline companies since it gave the state’s Public Utilities Commissioners the ability to override local ordinances and zoning laws meant to block the pipeline. The rejection of Referred Law 21 will have major implications for the $8 billion Summit Carbon Solutions Pipeline, which would collect CO2 from regional ethanol plants and deliver it to an injection well in North Dakota as a means of dealing with planet-warming emissions. The uncertainty around whether or not Referred Law 21 would pass is part of why the project is one of Heatmap’s most at-risk energy transition proposals.
U.S. Senate
Democrat Rep. Ruben Gallego vs. Republican Kari Lake
Status: Pending
Democrats will need a win in the Grand Canyon State if they have any chance of holding the Senate. While the pitch to undecided voters in Arizona has centered on reproductive and LGBTQ rights, Gallego helped to pass the Inflation Reduction Act in the House and has posited himself as a defender of Arizona’s public lands, water, and energy transition. Lake, a close ally of Trump’s, has boosted falsehoods about wind turbines killing an outsized number of birds and whales, and blamed the state’s heat deaths on drug overdoses. She has called climate change “fake science” and told voters that she’s “not going to be afraid of the weather.”
Arizona’s 1st Congressional District
Republican Rep. David Schweikert* vs. Democrat Amish Shah
Status: Pending
Arizona’s 1st congressional district, covering northeastern Phoenix and Scottsdale, was considered “ reliably Republican” for Schweikert’s first seven terms, but he’s facing a formidable challenge from Shah, a former ER doctor, in the recently redrawn district. Schweikert has taken a more moderate position on the energy transition than other Republicans in the state, arguing that “the government must stop picking winners and losers in the industry” but “we also should continue to expand into renewable energy resources such as wind, solar, hydrogen, nuclear, and geothermal.” Shah, who green groups like the Sierra Club endorse, has pushed for a “healthier Arizona” by standing up to polluters and protecting Arizona’s public lands. This race is one of several that could decide control of the U.S. House.
Arizona’s 6th Congressional District
Republican Rep. Juan Ciscomani* vs. Democrat Kirsten Engel
Status: Pending
Another close race that could decide control of the House is in the Tucson suburbs. Ciscomani is a Trump-endorsed moderate who voted against the IRA but has been friendlier on issues like residential solar projects. Engel’s team has positioned itself as better on water issues than Ciscomani and willing to stand up to foreign mining companies interested in the state’s copper resources.
The Arizona Corporation Commission
Opportunity: Flip three seats from Republicans
Status: Pending
The commission regulates utilities in the state, and in recent years it has actively dismantled clean energy policy and standards with particular aggression toward community solar. Arizona voters have an opportunity to elect representatives who will vote on rules for virtual power plants and can block the repeal of the state’s renewable energy and efficiency standards. There are three Democrats, two Green Party candidates, and three Republicans running for three of the commission’s five total seats.
Colorado’s 8th Congressional District
Democratic Rep. Yadira Caraveo* vs. Republican Gabe Evans
Status: Pending
Though the race in Colorado’s 8th congressional district has focused on the fentanyl and border crises, it encompasses the northern suburbs of Denver, including parts of the oil-and-gas-rich Front Range, where the fossil fuel industry has degraded local air quality for decades. Caraveo’s challenger Evans has dismissed “climate alarmism” and has a 0% score from Conservation Colorado for his “no” votes on everything from regulating toxic “forever chemicals” to transportation infrastructure development to holding gas companies accountable for their environmental impacts. Caraveo, a former pediatrician, has cited air pollution's impact on her patients as one of her motivations for running for office.
Iowa’s 1st Congressional District
Republican Rep. Mariannette Miller-Meeks* vs. Democrat Christina Bohannan
Status: Pending
Miller-Meeks, who represents the southeasternmost part of the state, also chairs the Conservative Climate Caucus and is a more moderate “ all of the above” energy supporter. Democrats, however, see the race as an opportunity to flip a seat in the House via Bohannan and have out-raised the Republican renewable energy advocate by a 2-to-1 margin, E&E News reports. Bohannan has attacked Miller-Meeks for slow-walking action on addressing climate change through her soft hand with the oil and gas industry.
Iowa’s 3rd Congressional District
Republican Rep. Zach Nunn* vs. Democrat Lanon Baccam
Status: 🔴Republican Rep. Zach Nunn wins
Democrats in Iowa were hoping for another potential pick-up in the swingy 3rd Congressional District, which includes parts of Des Moines and the Missouri border. Nunn made tax cuts a central component of his re-election bid, and he also voted to repeal tax credits for clean energy three times and bashed the IRA as “telling Iowans you should spend less, you should tighten your belt, but we're gonna go ahead and print off more money and spend more your tax dollars on projects.”
The Outer Continental Shelf Revenues for Coastal Protection and Restoration Fund Amendment
Opportunity: Requiring that federal reserves received by the state for alternative and renewable energy production off its coast go toward protecting the state’s oceanfronts
Status: 🟢 Passed
Louisiana voters opted to require that federal reserve revenue raised from renewable energy production in federal waters off its coast go into a fund that supports coastal restoration projects, including the construction of levees and protection of barrier islands. (Federal revenues received by oil and gas in the state already support this fund.) The Coastal Protection and Restoration Fund has been around since Hurricane Katrina and Rita in 2005, but most of its money came from damages paid after the Deepwater Horizon oil spill, and those funds will be exhausted by the end of 2031. Proponents argued the amendment is necessary to protect Louisiana’s coasts from worsening storms and rising sea levels, though opponents said it’s more important to keep the funds flexible for any legislative priorities that may arise.
U.S. Senate
Democrat Rep. Elissa Slotkin vs. Republican Mike Rogers
Status: 🔵Democrat Rep. Elissa Slotkin wins
Despite Democrats’ poor performance in many of Tuesday night’s Senate races, Rep. Elissa Slotkin managed to hold a seat for the party by winning the race to replace outgoing Senator Debbie Stabenow. Her campaign against Republican Mike Rogers had become a referendum on the state’s electric vehicle manufacturing industry, with Rogers alleging Slotkin and other Democrats support a (nonexistent) “EV mandate” that destroys jobs (it doesn’t). The arguments had put Slotkin on her back foot, however: She ran ads telling voters she doesn’t own an electric car.
Michigan’s 8th Congressional District
Republican Paul Junge vs. Democrat state Sen.Kristen McDonald Rivet
Status: 🔵Democrat state Sen.Kristen McDonald Rivet wins
Green groups like the LCV Victory Fund and Climate Power poured money and volunteer hours into picking up Michigan’s 8th Congressional District for Democrats, and on Tuesday their work paid off. McDonald Rivet has an impressive climate record, which includes helping to pass Governor Gretchen Whitmer’s 100% renewable energy bill while serving as a state senator. She has also fought for flood reduction infrastructure and lead pipe replacement funding in a district that includes Flint. Meanwhile, Junge dismissed solar and wind energy as not being “dependable,” talked up “clean coal” and expanding oil and gas leasing on public lands, and advocated for resuming construction on the Keystone Pipeline and maintaining the controversial Line 5 crude oil pipeline.
Nebraska’s 2nd Congressional District
Republican Rep. Don Bacon* vs. Democrat state Sen. Tony Vargas
Status: Pending
State Senator Tony Vargas is challenging the incumbent legislator in a district that includes Nebraska’s “blue dot” of Omaha. Though the race has centered mainly on issues like abortion, tax cuts, and immigration, Vargas is a former Earth sciences teacher who openly talks about combatting climate change and investing in clean energy (he even cosponsored a bill arguing the state Legislature has a “moral obligation” to do something about the issue). While in office, Bacon voted to repeal tax credits for wind and solar energy, and he’s chalked up extreme weather as having “cyclical impacts.”
New Mexico’s 2nd Congressional District
Democrat Rep. Gabe Vasquez* vs. Republican Yvette Herrell
Status: 🔵 Democrat Rep. Gabe Vasquez wins
Democrat Rep. Vasquez managed to fend off a challenge from Republican Herrell, whose seat he flipped in the super swingy 2nd congressional district of New Mexico two years ago. The district includes a large swath of the oil-rich Permian Basin, and Vasquez had walked the line between promoting wind and solar manufacturing as part of the IRA while also “looking out for those fossil fuel communities.” Herrell had said that renewable subsidies create “unfair” competition for oil and gas businesses, and she has a 0% lifetime score from LCV for such positions as voting in favor of rolling back access to public land.
New York’s 4th Congressional District
Republican Rep. Anthony D’Esposito* vs. Democrat Laura Gillen
Status: 🔵Democrat Laura Gillen wins
Gillen unseated D’Esposito in New York’s 4th Congressional District, which represents the southern part of Nassau County and is the second-wealthiest in the state. A Trump ally, D’Esposito had opposed local offshore wind projects as being “landscape-altering” and had helped to expand offshore drilling. Gillen previously lost to D’Esposito in 2022, but this time, she had played up her experience helping Hempstead recover from Hurricane Sandy and pushed for the protection of the district’s coastlines.
New York’s 17th Congressional District
Republican Rep. Mike Lawler* vs. Democrat Mondaire Jones
Status: 🔴Rep. Mike Lawler wins
Elon Musk’s PAC dumped money into the race to help Lawler win New York’s 17th Congressional District. Located just north of the liberal bastion of New York City, New York’s 17th Congressional District was safely controlled by Democrats until 2020’s infamous redistricting. Though the map was again redrawn for the 2024 election, NY-17 went virtually untouched in a “win” for Lawler. Besides being a critical race for control of the House, NY-17 also pitted Lawler, a co-sponsor of the Energy Choice Act aiming to protect natural gas, against Jones, who represented a former iteration of the district and supported congestion pricing (except for Lower Hudson Valley residents, of course) and the build-out of renewables. The candidates diverge on their opinion of the closure of the Indian Point nuclear power plant, which Lawler called “foolish;” Jones, somewhat out of step with his party, opposes nuclear power.
Wisconsin’s 3rd Congressional District
Republican Rep. Derrick Van Orden* vs. Democrat Rebecca Cooke
Status: 🔴Republican Rep. Derrick Van Orden wins
Republican incumbent Derrick Van Orden won his reelection campaign for Wisconsin’s 3rd Congressional District — which covers the exurbs of the Twin Cities and much of the southwestern part of the state — after making gas and energy prices a staple of his campaign. In addition to promoting increased domestic energy production, Van Orden is a member of the Congressional Biofuels Caucus and has pushed for renewable ethanol and sustainable aviation fuel, while at the same time stressing that tax dollars should not go toward “subsidizing the purchase of electric vehicles.” He was also present in Washington, D.C. on January 6, 2021 to attend the Stop the Steal rally that turned into an assault on the U.S. Capitol. His opponent, Cooke, had said she’d prioritize investment in clean energy infrastructure and new high-speed rail in Wisconsin and addressing PFAS in water.
U.S. Senate
Democrat Sen. Jon Tester* vs. Republican Tim Sheehy
Status: 🔴Republican Tim Sheehy wins
The LCV Victory Fund named Sheehy as one of its “dirty dozen” priority targets due to his advocacy for privatizing public lands and calling climate change the belief of a leftist cult. Tester, meanwhile, has been described as a “hero” of green groups due to his support of renewable tax credits and stated dreams of owning an electric tractor. Though it had already become apparent that Democrats would lose control of the Senate by the time the race was called, Tester’s defeat is nevertheless a stinging blow to climate advocates who hoped to maintain an advantage there.
Attorney General
Republican Attorney General Austin Knudsen* vs. Democrat Ben Alke
Status: 🔴Republican Attorney General Austin Knudsen wins
Knudsen leads the state’s case against the 16 young plaintiffs in Held v. Montana, who are suing lawmakers for allegedly violating their right to a “clean and healthful environment” as enshrined in the state’s constitution. Alke, the Democratic challenger, had the support of Montana Conservation Voters for his prior work in environmental law, including attempts to make public lands less accessible. Though a state panel recently recommended that he be suspended from practicing law for 90 days due to ethics violations, E&E News reported, in the end he carried the race by nearly 20 points.
The Montana Public Service Commission
Opportunity: Electing Independent Elena Evans to the commission
Status: 🟡 Failed
The three open seats on Montana’s PSC remained in Republican control, with incumbent Republican Jennifer Fielder holding out against her challenger, Elena Evans, a geologist and political Independent, who came in fourth. Their race had focused on energy affordability, especially after the Republican commission okayed a 28% rate increase for Northwestern Energy, the biggest utility in the state, last year. Evans had said she’d look closer at building climate resiliency into the state’s grid, while Fielder won on the message that it isn’t her place to weigh in on climate as a utility regulator.
U.S. Senate
Democrat Rep. Jacky Rosen vs. Republican Sam Brown
Status: Pending
Nevada’s junior senator, Jacky Rosen, is a clean energy enthusiast who helped pass the IRA and attempted to expand solar and geothermal energy within the Silver State. Brown has said he would not have supported the IRA and stood disagrees within the way of solar development in the state as a TK IN WHAT ROLE DID HE DO THIS?, while calling for expanding investment in fossil fuels. Brown also said he wants to cut the Department of Energy and any “environmental departments and agencies.”
Portland City Council
Opportunity: Portland voters are electing an entirely new city council and have the chance to choose representatives who will support the Portland Clean Energy Fund
Status: Pending
Portland has a new voting system for all new city council districts, meaning voters in Oregon’s biggest city will elect an entirely new set of representatives this fall. Lead Locally is backing five candidates in the race, including the executive director of an environmental justice group (Candace Avalos) and an energy economist for Bonneville Power Administration (Mitch Green). The next city council will make decisions about the fate of the Portland Clean Energy Fund, which allocates money for clean energy projects, and will weigh whether or not to transition away from fossil fuel infrastructure — namely, the Zenith Energy crude oil shipment facility and rail line in northwest Portland, which is an earthquake risk and contributes to the area’s poor air quality.
At stake is the continued progress of the Portland Clean Energy Fund, which allocates money for clean energy projects, as well as the potential closure of the Zenith Energy crude oil shipment facility in northwest Portland.
Measure 6-219 (Coos County) and Measure 8-116 (Curry County)
Opportunity: To directly express community opposition to offshore wind
Status: 🟡 Passed
Voters in two counties on the southern Oregon Coast expressed overwhelming opposition to offshore wind development in their region. The November ballots in Coos and Curry counties included a non-binding question intended to take the community’s temperature on potential offshore wind projects. More than 60% of Coos County voters registered their feelings against the development of offshore wind projects, while nearly 80% of Curry County voters objected specifically to floating offshore wind.
Proposition 4
Opportunity: Authorizes $10 billion in bonds for water quality, coastal resilience projects, wildfire prevention, and climate-risk protections
Californians have approved a proposition that will issue $10 billion in bonds, which will largely go toward infrastructure projects aimed at mitigating and adapting to climate change, with at least 40% of the funds earmarked for disadvantaged communities. The bill had been backed by organizations like CALFIRE and the National Wildlife Federation and was opposed by Republicans for being unfocused and adding to the state deficit.
Measure GG (Berkeley)
Opportunity: Adopting a tax on natural gas use in most buildings over 15,000 square feet
Status: 🟡 Failed
Over two-thirds of voters in Berkeley rejected a ballot measure backed by climate and labor groups that would have authorized a tax of $2.9647 per therm of natural gas in large buildings, with the funds going toward decarbonization programs. The ballot measure had been an attempt to functionally reinstate the city’s first-in-the-nation prohibition against gas hookups in new buildings, which a federal appeals court struck down last spring. Supporters of Measure GG had raised almost $72,000 by the end of September, while the no campaign — backed by real estate groups that said the tax was prohibitively expensive for small businesses, nonprofits, schools, and grocery stores — had raised $131,000 at the end of September.
Initiative 2117
Opportunity: To vote against repealing the state’s cap and invest program
Status: 🟡 Failed
The Republican-backed effort to repeal Washington state’s new cap and invest program has failed. Both the “no” and “yes” campaigns poured money into their respective sides, making the issue the most expensive ballot measure campaign of this election cycle. If I-2117 had passed, it would have left a gaping hole in the state’s revenue for transit projects, decarbonization initiatives, and clean air and water programs.
Initiative 2066
Opportunity: To support Washington’s transition away from natural gas
Status: Pending
Washingtonians will also vote on I-2066, which would prevent the state from incentivizing a transition from natural gas. The initiative would also jeopardize opportunities to promote thermal energy networks as a gas alternative and bar cities and towns, as well as Washington’s energy code, from “prohibiting, penalizing, or discouraging” gas appliances in buildings, imperiling programs like Seattle’s 2050 net-zero emissions target.
U.S. House Alaska At-Large District
Democrat Rep. Mary Peltola* vs. Republican Nick Begich III
Status: Pending
Peltola has played nice with the fossil fuel industry — defending the Biden administration’s reversal on the Willow Project and supporting the construction of a trans-Alaska natural gas pipeline — but she also boasts an 88% score from the League of Conservation Voters due to her otherwise environmentally friendly voting record, has advocated for more tribal involvement in the environmental review process, and she sits on the influential House Natural Resource Committee. Begich has pitched himself to voters as the better candidate for Alaska’s oil and gas industry, which he claims is besieged by Democrats like Peltola. This race is one of several that could decide control of the U.S. House.
Question 1 (Honolulu)
Opportunity: Would designate 0.5% of property taxes to a Climate Resiliency Fund
Status: 🟢 Passed
Honolulu residents were asked whether they want to create a Climate Resiliency Fund with money raised by half a percent of the city’s property taxes. Advocates argued that the waterfront city needs to prioritize climate the same way it prioritizes affordable housing and the environment, both of which also have funds that receive a half percent of property taxes. Opponents said the creation of an exclusive climate fund will make the revenue less flexible in the case of an unforeseen crisis like rising homelessness or COVID-19, while others worried any shortfalls in the city budget caused by the creation of the fund will result in a rise in property taxes. Honolulu residents approved the measure by a wide margin, with 58% voting in favor, according to the Honolulu Star-Advertiser.
Editor’s note: This story has been updated to reflect the correct site of the injection well for the Summit carbon pipeline.
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On a new report from the Energy Institute, high-stakes legislating, and accelerating nuclear development
Current conditions: Monsoon rains hit the southwestern U.S., with flash floods in Roswell, New Mexico, and flooding in El Paso, Texas • The Forsyth Fire in Utah has spread to 9,000 acres and is only 5% contained • While temperatures are falling into the low 80s in much of the Northeast, a high of 96 degrees Fahrenheit is forecast for Washington, D.C., where Republicans in the Senate seek to finish their work on the “One Big, Beautiful Bill.”
The world used more of just about every kind of energy source in 2024, including coal, oil, gas, renewables, hydro, and nuclear, according to the annual Statistical Review of World Energy, released by the Energy Institute. Here are some of the key numbers from the report:
You can read the full report here.
Virginia Republican Jen Kiggans is a vice chair of the Conservative Climate Caucus and a signatory of several letters supporting the preservation of clean energy tax credits in the Inflation Reduction Act, including one letter she co-authored with Pennsylvania’s Brian Fitzpatrick criticizing the House reconciliation bill’s rough approach to slashing the credits. On Wednesday, however, she said on X that the Senate language “responsibly phases out certain tax credits while preserving American investment and innovation in our energy sector.”
The Senate is still pushing to have the reconciliation bill on President Trump’s desk by July 4, and is expected to work through the weekend to get it done. But as Sahil Kapur of NBC News reported Wednesday, House and Senate leaders have been attempting to hash out yet another version of the bill that could pass both chambers quickly, meaning the legislation is still very much in flux.
Shell is in early talks to acquire fellow multinational oil giant BP, the Wall Street Journal reported. While BP declined to comment to the Journal, Shell called the story “market speculation” and said that “no talks are taking place.”
BP is currently valued at $80 billion, which would make a potential tie-up the largest corporate oil deal since the Exxon Mobil merger, according to the Journal.
Both Shell and BP have walked back from commitments to and investments in decarbonization and green energy in recent months. BP said in September of last year that it would divest from its U.S. wind business, while Shell said in January that it would “pause” its investment in the U.S. offshore wind industry and took an accompanying charge of $1 billion.
The combined company would be better positioned to compete with supermajors like Exxon, which is now worth over $450 billion, while Shell and BP have a combined valuation around $285 billion.
The shuttered Three Mile Island in October. Chip Somodevilla/Getty Images
Three Mile Island Unit 1 will restart a year early, its owner Constellation said Wednesday. When Constellation and Microsoft announced the plan to restart the nuclear facility last fall they gave a target date of 2028. More recently, however, PJM Interconnection, the interstate electricity market that includes Pennsylvania, approved a request made from the state’s governor, Josh Shapiro, to fast-track the plant’s interconnection, the company said, meaning it could open as soon as 2027.
Constellation reported “significant progress” on hiring and training new workers, with around 400 workers either hired or due to start new jobs soon. “We’re on track to make history ahead of schedule, helping America achieve energy independence, supercharge economic growth, and win the global AI race,” Constellation’s chief executive Joe Dominguez said.
The Chinese electric carmarker BYD is addressing rising inventory and lower prices by cutting back its production plans. The company “has slowed its production and expansion pace in recent months by reducing shifts at some factories in China and delaying plans to add new production lines,” Reuters reported.
The slowdown comes “as it grapples with rising inventory even after offering deep price cuts in China's cutthroat auto market,” according to the Reuters report.
In 2024, BYD beat out Tesla in annual sales, with over 4 million cars sold, for a total annual revenue over $100 billion. Tesla’s revenue was just short of $100 billion last year.
While BYD’s factories may be slowing down, it is still looking to expand, especially overseas. In April, more than 7,000 BYD battery electric cars were registered in Europe, according to Bloomberg. This more-than-doubling since last year slingshotted BYD past Tesla on the continent, where its sales have fallen by almost 50%.
“Where does the power sector go from here?” an audience member asked at our exclusive Heatmap subscriber event in New York on Wednesday, referring to a potential future without the Inflation Reduction Act. “Higher costs,” Emily Pontecorvo answered. There is one potential bright spot, however, as Robinson Meyer explained: “If I were a Democrat considering running an affordability campaign or a cost-of-living campaign in ’26 or ’28, there’s lots of openings to talk about clean energy — the policy that’s happening right now — utility rates, and energy affordability.”
The science is still out — but some of the industry’s key players are moving ahead regardless.
The ocean is by far the world’s largest carbon sink, capturing about 30% of human-caused CO2 emissions and about 90% of the excess heat energy from said emissions. For about as long as scientists have known these numbers, there’s been intrigue around engineering the ocean to absorb even more. And more recently, a few startups have gotten closer to making this a reality.
Last week, one of them got a vote of confidence from leading carbon removal registry Isometric, which for the first time validated “ocean alkalinity enhancement” credits sold by the startup Planetary — 625.6 to be exact, representing 625.6 metric tons of carbon removed. No other registry has issued credits for this type of carbon removal.
When the ocean absorbs carbon, the CO2 in the air reacts with the water to form carbonic acid, which quickly breaks down into hydrogen ions and bicarbonate. The excess hydrogen increases the acidity of the ocean, changing its chemistry to make it less effective at absorbing CO2, like a sponge that’s already damp. As levels of atmospheric CO2 increase, the ocean is getting more acidic overall, threatening marine ecosystems.
Planetary is working to make the ocean less acidic, so that it can take in more carbon. At its pilot plant in Nova Scotia, the company adds alkalizing magnesium hydroxide to wastewater after it’s been used to cool a coastal power plant and before it’s discharged back into the ocean. When the alkaline substance (which, if you remember your high school chemistry, is also known as a base) dissolves in the water, it releases hydroxide ions, which combine with and neutralize hydrogen ions. This in turn reduces local acidity and raises the ocean’s pH, thus increasing its capacity to absorb more carbon dioxide. That CO2 is then stored as a stable bicarbonate for thousands of years.
“The ocean has just got such a vast amount of capacity to store carbon within it,” Will Burt, Planetary’s vice president of science and product, told me. Because ocean alkalinity enhancement mimics a natural process, there are fewer ecosystem concerns than with some other means of ocean-based carbon removal, such as stimulating algae blooms. And unlike biomass or soil-related carbon removal methods, it has a very minimal land footprint. For this reason, Burt told me “the massiveness of the ocean is going to be the key to climate relevance” for the carbon dioxide removal industry as a whole.
But that’s no guarantee. As with any open system where carbon can flow in and out, how much carbon the ocean actually absorbs is tricky to measure and verify. The best oceanography models we have still don’t always align with observational data.
Given this, is it too soon for Planetary to issue credits? It’s just not possible right now for the startup — or anyone in the field — to quantify the exact amount of carbon that this process is removing. And while the company incorporates error bars into its calculations and crediting mechanisms, scientists simply aren’t certain about the degree of uncertainty that remains.
“I think we still have a lot of work to do to actually characterize the uncertainty bars and make ourselves confident that there aren’t unknown unknowns that we are not thinking about,” Freya Chay, a program lead at CarbonPlan, told me. The nonprofit aims to analyze the efficacy of various carbon removal pathways, and has worked with Planetary to evaluate and inform its approach to ocean alkalinity enhancement.
Planetary’s process for measurement and verification employs a combination of near field observational data and extensive ocean modeling to estimate the rate, efficiency, and permanence of carbon uptake. Close to the point where it releases the magnesium hydroxide, the company uses autonomous sensors at and below the ocean’s surface to measure pH and other variables. This real-time data then feeds into ocean models intended to simulate large-scale processes such as how alkalinity disperses and dissolves, the dynamics of CO2 absorption, and ultimately how much carbon is locked away for the long-term.
But though Planetary’s models are peer-reviewed and best in class, they have their limits. One of the largest remaining unknowns is how natural changes in ocean alkalinity feed into the whole equation — that is, it’s possible that artificially alkalizing the ocean could prevent the uptake of naturally occurring bases. If this is happening at scale, it would call into question the “enhancement” part of alkalinity enhancement.
There’s also the issue of regional and seasonal variability in the efficiency of CO2 uptake, which makes it difficult to put any hard numbers to the efficacy of this solution overall. To this end, CarbonPlan has worked with the marine carbon removal research organization [C]Worthy to develop an interactive tool that allows companies to explore how alkalinity moves through the ocean and removes carbon in various regions over time.
As Chay explained, though, not all the models agree on just how much carbon is removed by a given base in a given location at a given time. “You can characterize how different the models are from each other, but then you also have to figure out which ones best represent the real world,” she told me. “And I think we have a lot of work to do on that front.”
From Chay’s perspective, whether or not Planetary is “ready” to start selling carbon removal credits largely depends on the claims that its buyers are trying to make. One way to think about it, she told me, is to imagine how these credits would stand up in a hypothetical compliance carbon market, in which a polluter could buy a certain amount of ocean alkalinity credits that would then allow them to release an equivalent amount of emissions under a legally mandated cap.
“When I think about that, I have a very clear instinctual reaction, which is, No, we are far from ready,”Chay told me.
Of course, we don’t live in a world with a compliance carbon market, and most of Planetary’s customers thus far — Stripe, Shopify, and the larger carbon removal coalition, Frontier, that they’re members of — have refrained from making concrete claims about how their voluntary carbon removal purchases impact broader emissions goals. But another customer, British Airways, does appear to tout its purchases from Planetary and others as one of many pathways it’s pursuing to reach net zero. Much like the carbon market itself, such claims are not formally regulated.
All of this, Chay told me, makes trying to discern the most responsible way to support nascent solutions all the more “squishy.”
Matt Long, CEO and co-founder of [C]Worthy, told me that he thinks it’s both appropriate and important to start issuing credits for ocean alkalinity enhancement — while also acknowledging that “we have robust reason to believe that we can do a lot better” when it comes to assessing these removals.
For the time being, he calls Planetary’s approach to measurement “largely credible.”
“What we need to adopt is a permissive stance towards uncertainty in the early days, such that the industry can get off the ground and we can leverage commercial pilot deployments, like the one that Planetary has engaged in, as opportunities to advance the science and practice of removal quantification,” Long told me.
Indeed, for these early-stage removal technologies there are virtually no other viable paths to market beyond selling credits on the voluntary market. This, of course, is the very raison d’etre of the Frontier coalition, which was formed to help emerging CO2 removal technologies by pre-purchasing significant quantities of carbon removal. Today’s investors are banking on the hope that one day, the federal government will establish a domestic compliance market that allows companies to offset emissions by purchasing removal credits. But until then, there’s not really a pool of buyers willing to fund no-strings-attached CO2 removal.
Isometric — an early-stage startup itself — says its goal is to restore trust in the voluntary carbon market, which has a history of issuing bogus offset credits. By contrast, Isometric only issues “carbon removal” credits, which — unlike offsets — are intended to represent a permanent drawdown of CO2 from the atmosphere, which the company defines as 1,000 years or longer. Isometric’s credits also must align with the registry’s peer-reviewed carbon removal protocols, though these are often written in collaboration with startups such as Planetary that are looking to get their methodologies approved.
The initial carbon removal methods that Isometric dove into — bio-oil geological storage, biomass geological storage, direct air capture — are very measurable. But Isometric has since branched beyond the easy wins to develop protocols for potentially less permanent and more difficult to quantify carbon removal methods, including enhanced weathering, biochar production, and reforestation.
Thus, the core tension remains. Because while Isometric’s website boasts that corporations can “be confident every credit is a guaranteed tonne of carbon removal,” the way researchers like Chay and Long talk about Planetary makes it sound much more like a promising science project that’s being refined and iterated upon in the public sphere.
For his part, Burt told me he knows that Planetary’s current methodologies have room for improvement, and that being transparent about that is what will ultimately move the company forward. “I am constantly talking to oceanography forums about, Here’s how we’re doing it. We know it’s not perfect. How do we improve it?” he said.
While Planetary wouldn’t reveal its current price per ton of CO2 removed, the company told me in an emailed statement that it expects its approach “to ultimately be the lowest-cost form” of carbon removal. Burt said that today, the majority of a credit’s cost — and its embedded emissions — comes from transporting bases from the company’s current source in Spain to its pilot project in Nova Scotia. In the future, the startup plans to mitigate this by co-locating its projects and alkalinity sources, and by clustering project sites in the same area.
“You could probably have another one of these sites 2 kilometers down the coast,” he told me, referring to the Nova Scotia project. “You could do another 100,000 tonnes there, and that would not be too much for the system, because the ocean is very quickly diluted.”
The company has a long way to go before reaching that type of scale though. From the latter half of last year until now, Planetary has released about 1,100 metric tons of material into the ocean, which it says will lead to about 1,000 metric tons of carbon removal.
But as I was reminded by everyone, we’re still in the first inning of the ocean alkalinity enhancement era. For its part, [C]Worthy is now working to create the data and modeling infrastructure that startups such as Planetary will one day use to more precisely quantify their carbon removal benefits.
“We do not have the system in place that we will have. But as a community, we have to recognize the requirement for carbon removal is very large, and that the implication is that we need to be building this industry now,” Long told me.
In other words: Ready or not, here we come.
On mercury rising, climate finance, and aviation emissions
Current conditions: Tropical Storm Andrea has become the first named Atlantic storm of 2025 • Hundreds of thousands are fleeing their homes in southwest China as heavy rains cause rivers to overflow • It’s hot and humid in New York’s Long Island City neighborhood, where last night New York City mayoral candidate Zohran Mamdani delivered his victory speech after defeating former governor and longtime party power broker Andrew Cuomo in the race’s Democratic primary.
The brutal heat dome baking the eastern half of the United States continues today. Cooler weather is in the forecast for tomorrow, but this heat wave has broken a slew of temperature records across multiple states this week:
In Washington, D.C., rail temperatures reached a blistering 135 degrees, forcing the city’s Metro to slow down train service. Meanwhile, in New Jersey, the heat sickened more than 150 people attending a high school graduation ceremony. As power demand surged, the Department of Energy issued an energy emergency in the Southeast to “help mitigate the risk of blackouts.”
As Heatmap’s Matthew Zeitlin pointed out on Tuesday, in terms of what is on the grid and what is demanded of it, this may be the easiest summer for a long time. “Demands on the grid are growing at the same time the resources powering it are changing,” Zeitlin writes. “Electricity load growth is forecast to grow several percent a year through at least the end of the decade. At the same time, aging plants reliant on oil, gas, and coal are being retired (although planned retirements are slowing down), while new resources, largely solar and batteries, are often stuck in long interconnection queues — and, when they do come online, offer unique challenges to grid operators when demand is high.”
A group of 21 Democrat-led states including New Jersey, Massachusetts, New York, Arizona, and California, is suing the Trump administration for cutting billions of dollars in federal funding, including grants related to climate change initiatives. The lawsuit says federal agencies have been “unlawfully invoking a single subclause” to cancel grants that the administration deems no longer align with its priorities. The clause in question states that federal agencies can terminate grants “pursuant to the terms and conditions of the federal award, including, to the extent authorized by law, if an award no longer effectuates the program goals or agency priorities.” The states accuse the administration of leaning on this clause for “virtually unfettered authority to withhold federal funding any time they no longer wish to support the programs for which Congress has appropriated funding.”
The rollback has gutted projects across states and nonprofits that support diversity, equity, and inclusion, as well as climate change preparation programs and research. The states say the clause is being used unlawfully, and hope a judge agrees. “These cuts are simply illegal,” said New York Attorney General Letitia James. “Congress has the power of the purse, and the president cannot cut billions of dollars of essential resources simply because he doesn’t like the programs being funded.”
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A brief update from the Bonn Climate Change Conference in Germany: A group of 44 “Least Developed Countries” have called for rich countries to triple the financing goal for climate change adaptation by 2030 compared to 2022 levels. The current target sits at $40 billion a year by 2025, a number set back in 2021 at COP26. According toClimate Home News, tripling the financing goal on 2022 levels would bring in a little less than $100 billion annually. That’s far short of the $160 billion to $340 billion that the United Nations estimates will be needed by 2030. The Indian Express also reports that developing countries have “managed to force a reopening of discussions on the obligations of developed nations to ‘provide’ finance, and not just make efforts towards ‘mobilising’ financial resources, for climate action.” The issue will also be discussed at COP30 in Brazil later this year. The Bonn conference has been running since June 16 and ends tomorrow.
In the UK, aviation is now a bigger source of greenhouse gas emissions than the power sector, according to a new report from the Climate Change Committee. The independent climate advisors say that demand for leisure travel is boosting demand for international flights, and “continued emissions growth in this sector could put future targets at risk.” Meanwhile, the UK power sector has been rapidly decarbonizing, and is now the sixth largest source of emissions. (In the U.S., electricity production is the second-largest source of emissions, behind transportation.) The report also found that heat pump installations increased by 56% in 2024, and that nearly 20% of new vehicles sold were electric. UK emissions were down 50% last year compared to 1990.
The committee applauded the progress but urged more action from the government to cut electricity prices to help speed up the transition to clean technologies. “Our country is among a leading group of economies demonstrating a commitment to decarbonise society,” said Piers Forster, interim chair of the committee. “This is to be celebrated: delivering deep emissions reduction is the only way to slow global warming.”
Voters in North Carolina want Congress to leave the Inflation Reduction Act well enough alone, a new poll from Data for Progress finds. The survey, which asked North Carolina voters specifically about the clean energy and climate provisions in the bill, presented respondents with a choice between two statements: “The IRA should be repealed by Congress” and “The IRA should be kept in place by Congress.” (“Don’t know” was also an option.) The responses from voters broke down predictably along party lines, with 71% of Democrats preferring to keep the IRA in place compared to just 31% of Republicans, with half of independent voters in favor of keeping the climate law. Overall, half of North Carolina voters surveyed wanted the IRA to stick around, compared to 37% who’d rather see it go — a significant spread for a state that, prior to the passage of the climate law, was home to little in the way of clean energy development.
North Carolina now has a lot to lose with the potential repeal of the Inflation Reduction Act, as Heatmap’s Emily Pontecorvo has pointed out. The IRA brought more than 17,000 jobs to the state, along with $20 billion in investment spread out over 34 clean energy projects. Electric vehicle and charging manufacturers in particular have flocked to the state, with Toyota investing $13.9 billion in its Liberty EV battery manufacturing facility, which opened this past April.
As a fragile ceasefire between Israel and Iran takes hold, oil prices are now lower than they were before the conflict began on June 13.