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From what it means for America’s climate goals to how it might make American cars smaller again
The Biden administration just kicked off the next phase of the electric-vehicle revolution.
The Environmental Protection Agency unveiled Wednesday some of the world’s most aggressive climate rules on the transportation sector, a sweeping effort that aims to ensure that two-thirds of new cars, SUVs, and pickups — and one-quarter of new heavy-duty trucks — sold in the United States in 2032 will be all electric.
The rules, which are the most ambitious attempt to regulate greenhouse-gas pollution in American history, would put the country at the forefront of the global transition to electric vehicles. If adopted and enforced as proposed, the new standards could eventually prevent 10 billion tons of carbon pollution, roughly double America’s total annual emissions last year, the EPA says.
The rules would roughly halve carbon pollution from America’s massive car and truck fleet, the world’s third largest, within a decade. Such a cut is in line with Biden’s Paris Agreement goal of cutting carbon pollution from across the economy in half by 2030.
Transportation generates more carbon pollution than any other part of the U.S. economy. America’s hundreds of millions of cars, SUVs, pickups, 18-wheelers, and other vehicles generated roughly 25% of total U.S. carbon emissions last year, a figure roughly equal to the entire power sector’s.
In short, the proposal is a big deal with many implications. Here are seven of them.
Heatmap Illustration/Getty Images
Every country around the world must cut its emissions in half by 2030 in order for the world to avoid 1.5 degrees Celsius of temperature rise, according to the Intergovernmental Panel on Climate Change. That goal, enshrined in the Paris Agreement, is a widely used benchmark for the arrival of climate change’s worst impacts — deadly heat waves, stronger storms, and a near total die-off of coral reefs.
The new proposal would bring America’s cars and trucks roughly in line with that requirement. According to an EPA estimate, the vehicle fleet’s net carbon emissions would be 46% lower in 2032 than they stand today.
That means that rules of this ambition and stringency are a necessary part of meeting America’s goals under the Paris Agreement. The United States has pledged to halve its carbon emissions, as compared to its all-time high, by 2020. The country is not on track to meet that goal today, but robust federal, state, and corporate action — including strict vehicle rules — could help it get there, a recent report from the Rhodium Group, an energy-research firm, found.
Heatmap Illustration/Getty Images
Until this week, California and the European Union had been leading the world’s transition to electric vehicles. Both jurisdictions have pledged to ban sales of new fossil-fuel-powered cars after 2035 and set aggressive targets to meet that goal — although Europe recently watered down its commitment by allowing some cars to burn synthetic fuels.
The United States hasn’t issued a similar ban. But under the new rules, its timeline for adopting EVs will come close to both jurisdictions — although it may slightly lag California’s. By 2030, EVs will make up about 58% of new vehicles sold in Europe, according to the think tank Transportation & Environment; that is roughly in line with the EPA’s goals.
California, meanwhile, expects two-thirds of new car sales to be EVs by the same year, putting it ahead of the EPA’s proposal. The difference between California’s targets and the EPA’s may come down to technical accounting differences, however. The Washington Post has reported that the new EPA rules are meant to harmonize the national standards with California’s.
Heatmap Illustration/Getty Images
With or without the rules, the United States was already likely to see far more EVs in the future. Ford has said that it would aim for half of its global sales to be electric by 2030, and Stellantis, which owns Chrysler and Jeep, announced that half of its American sales and all its European sales must be all-electric by that same date. General Motors has pledged to sell only EVs after 2035. In fact, the EPA expects that automakers are collectively on track for 44% of vehicle sales to be electric by 2030 without any changes to emissions rules.
But every manufacturer is on a different timeline, and some weren’t planning to move quite this quickly. John Bozella, the president of Alliance for Automotive Innovation, has struck a skeptical note about the proposal. “Remember this: A lot has to go right for this massive — and unprecedented — change in our automotive market and industrial base to succeed,” he told The New York Times.
The proposed rules would unify the industry and push it a bit further than current plans suggest.
Heatmap Illustration/Getty Images
The EPA’s proposal would see sales of all-electric heavy trucks grow beginning with model year 2027. The agency estimates that by 2032, some 50% of “vocational” vehicles sold — like delivery trucks, garbage trucks, and cement mixers — will be zero-emissions, as well as 35% of short-haul tractors and 25% of long-haul tractor trailers. This would save about 1.8 billion tons of CO2 through 2055 — roughly equivalent to one year’s worth of emissions from the transportation sector.
But the proposal falls short of where the market is already headed, some environmental groups pointed out. “It’s not driving manufacturers to do anything,” said Paul Cort, director of Earthjustice’s Right to Zero campaign. “It’s following what’s happening in the market in a very conservative way.”
Last year, California passed rules requiring 60% of vocational truck sales and 40% of tractors to be zero-emissions by 2032. Daimler, the world’s largest truck manufacturer, has said that zero emissions trucks would make up 60% of its truck sales by 2030 and 100% by 2039. Volvo Trucks, another major player, said it aims for 50% of its vehicle deliveries to be electric by 2030.
Heatmap Illustration/Getty Images
One of the more interesting aspects of the new rules is that they pick up on a controversy that has been running on and off for the past 13 years.
In 2010, the Obama administration issued the first-ever greenhouse-gas regulations for light-duty cars, SUVs, and trucks. In order to avoid a Supreme Court challenge to the rules, the White House did something unprecedented: It got every automaker to agree to meet the standards even before they became law.
This was a milestone in the history of American environmental law. Because the automakers agreed to the rules, they were in effect conceding that the EPA had the legal authority to regulate their greenhouse-gas pollution in the first place. That shored up the EPA’s legal authority to limit greenhouse gases from any part of the economy, allowing the agency to move on to limiting carbon pollution from power plants and factories.
But that acquiescence came at a cost. The Obama administration agreed to what are called “vehicle footprint” provisions, which put its rules on a sliding scale based on vehicle size. Essentially, these footprint provisions said that a larger vehicle — such as a three-row SUV or full-sized pickup — did not have to meet the same standards as a compact sedan. What’s more, an automaker only had to meet the standards that matched the footprint of the cars it actually sold. In other words, a company that sold only SUVs and pickups would face lower overall requirements than one that also sold sedans, coupes, and station wagons.
Some of this decision was out of Obama’s hands: Congress had required that the Department of Transportation, which issues a similar set of rules, consider vehicle footprint in laws that passed in 2007 and 1975. Those same laws also created the regulatory divide between cars and trucks.
But over the past decade, SUV and truck sales have boomed in the United States, while the market for old-fashioned cars has withered. In 2019, SUVs outsold cars two to one; big SUVs and trucks of every type now make up nearly half the new car market. In the past decade, too, the crossover — a new type of car-like vehicle that resembles a light-duty truck — has come to dominate the American road. This has had repercussions not just for emissions, but pedestrian fatalities as well.
Researchers have argued that the footprint rules may be at least partially to blame for this trend. In 2018, economists at the University of Chicago and UC Berkeley argued Japan’s tailpipe rules, which also include a footprint mechanism, pushed automakers to super-size their cars. Modeling studies have reached the same conclusion about the American rules.
For the first time, the EPA’s proposal seems to recognize this criticism and tries to address it. The new rules make the greenhouse-gas requirements for cars and trucks more similar than they have been in the past, so as to not “inadvertently provide an incentive for manufacturers to change the size or regulatory class of vehicles as a compliance strategy,” the EPA says in a regulatory filing.
The new rules also tighten requirements on big cars and trucks so that automakers can’t simply meet the rules by enlarging their vehicles.
These changes may not reverse the trend toward larger cars. It might even reveal how much cars’ recent growth is driven by consumer taste: SUVs’ share of the new car market has been growing almost without exception since the Ford Explorer debuted in 1991. But it marks the first admission by the agency that in trying to secure a climate win, it may have accidentally created a monster.
Heatmap Illustration/Buenavista Images via Getty Images
The EPA is trumpeting the energy security benefits of the proposal, in addition to its climate benefits.
While the U.S. is a net exporter of crude — and that’s not expected to change in the coming decades — U.S. refineries still rely on “significant imports of heavy crude which could be subject to supply disruptions,” the agency notes. This reliance ties the U.S. to authoritarian regimes around the world and also exposes American consumers to wilder swings in gas prices.
But the new greenhouse gas rules are expected to severely diminish the country’s dependence on foreign oil. Between cars and trucks, the rules would cut crude oil imports by 124 million barrels per year by 2030, and 1 billion barrels in 2050. For context, the United States imported about 2.2 billion barrels of crude oil in 2021.
This would also be a turning point for gas stations. Americans consumed about 135 billion gallons of gasoline in 2022. The rules would cut into gas sales by about 6.5 billion gallons by 2030, and by more than 50 billion gallons by 2050. Gas stations are going to have to adapt or fade away.
Heatmap Illustration/Getty Images
Although it may seem like these new electric vehicles could tax our aging, stressed electricity grid, the EPA claims these rules won’t change the status quo very much. The agency estimates the rules would require a small, 0.4% increase in electricity generation to meet new EV demand by 2030 compared to business as usual, with generation needs increasing by 4% by 2050. “The expected increase in electric power demand attributable to vehicle electrification is not expected to adversely affect grid reliability,” the EPA wrote.
Still, that’s compared to the trajectory we’re already on. With or without these rules, we’ll need a lot of investment in new power generation and reliability improvements in the coming years to handle an electrifying economy. “Standards or no standards, we have to have grid operators preparing for EVs,” said Samantha Houston, a senior vehicles analyst at the Union of Concerned Scientists.
The reduction in greenhouse gas emissions from replacing gas cars will also far outweigh any emissions related to increased power demands. The EPA estimates that between now and 2055, the rules could drive up power plant pollution by 710 million metric tons, but will cut emissions from cars by 8 billion tons.
This article was last updated on April 13 at 12:37 PM ET.
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Current conditions: The remnants of Tropical Storm Chantal will bring heavy rain and potential flash floods to the Carolinas, southeastern Virginia, and southern Delaware through Monday night • Two people are dead and 300 injured after Typhoon Danas hit Taiwan • Life-threatening rainfall is expected to last through Monday in Central Texas.
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The flash floods in Central Texas are expected to become one of the deadliest such events in the past 100 years, with authorities updating the death toll to 82 people on Sunday night. Another 41 people are still missing after the storms, which began Thursday night and raised the Guadalupe River some 26 feet in less than an hour, providing little chance for holiday weekend campers and RVers to escape.
Although it’s far too soon to definitively attribute the disaster to climate change, a warmer atmosphere is capable of holding more moisture and producing heavy bursts of life-threatening rainfall. Disasters like the one in Texas are one of the “hardest things to predict that’s becoming worse faster than almost anything else in a warming climate, and it’s at a moment where we’re defunding the ability of meteorologists and emergency managers to coordinate,” Daniel Swain of the University of California Agriculture and Natural Resources told the Los Angeles Times. Meteorologists who spoke to Wired argued that the National Weather Service “accurately predicted the risk of flooding in Texas and could not have foreseen the extreme severity of the storm” ahead of the event, while The New York Times noted that staffing shortages at the agency following President Trump’s layoffs potentially resulted in “the loss of experienced people who would typically have helped communicate with local authorities in the hours after flash flood warnings were issued overnight.”
President Trump announced this weekend that his administration plans to send up to 15 letters on Monday to important trade partners detailing their tariff rates. Though Trump didn’t specify which countries would receive such letters or what the rates could be, he said the tariffs would go into effect on August 1 — an extension from the administration’s 90-day pause through July 9 — and range “from maybe 60% or 70% tariffs to 10% and 20% tariffs.” Treasury Secretary Scott Bessent added on CNN on Sunday that the administration would subsequently send an additional round of letters to 100 less significant trade partners, warning them that “if you don’t move things along” with trade negotiations, “then on August 1, you will boomerang back to your April 2 tariff level.” Trump’s proposed tariffs have already rattled industries as diverse as steel and aluminum, oil, plastics, agriculture, and bicycles, as we’ve covered extensively here at Heatmap. Trump’s weekend announcement also sent jitters through global markets on Monday morning.
President Trump’s gutting of the Inflation Reduction Act with the signing of the budget reconciliation bill last week will add an extra 7 billion tons of emissions to the atmosphere by 2030, a new analysis by Climate Brief has found. The rollback on renewable energy credits and policy means that “U.S. emissions are now set to drop to just 3% below current levels by 2030 — effectively flatlining — rather than falling 40% as required to hit the now-defunct [Paris Agreement] target,” Carbon Brief notes. As a result, the U.S. will be about 2 billion tons short of its emissions goal by 2030, adding an emissions equivalent of “roughly the annual output of Indonesia, the world’s sixth-largest emitter.”
To reach its conclusions, Carbon Brief utilized modeling by Princeton University’s REPEAT Project, which examined how the current obstacles facing U.S. wind and solar energy will impact U.S. emissions targets, as well as the likely slowdown in electric vehicle sales and energy efficiency upgrades due to the removal of subsidies. “Under this new set of U.S. policies, emissions are only expected to be 20% lower than 2005 levels by 2030,” Carbon Brief writes.
Engineering giant SKF announced late last week that it had set a new world record for tidal turbine reliability, with its systems in northern Scotland having operated continuously for over six years at 1.5 megawatts “without the need for unplanned or disruptive maintenance.” The news represents a significant milestone for the technology since “harsh conditions, high maintenance, and technical challenges” have traditionally made tidal systems difficult to implement in the real world, Interesting Engineering notes. The pilot program, MayGen, is operated by SAE Renewables and aims, as its next step, to begin deploying 3-megawatt powertrains for 30 turbines across Scotland, France, and Japan starting next year.
Satellites monitoring the Southern Ocean have detected for the first time a collapse and reversal of a major current in the Atlantic Meridional Overturning Circulation. “This is an unprecedented observation and a potential game-changer,” said physicist Marilena Oltmanns, the lead author of a paper on the finding, adding that the changes could “alter the Southern Ocean’s capacity to sequester heat and carbon.”
A breakthrough in satellite ocean observation technology enabled scientists to recognize that, since 2016, the Southern Ocean has become saltier, even as Antarctic sea ice has melted at a rate comparable to the loss of Greenland’s ice. The two factors have altered the Southern Ocean’s properties like “we’ve never seen before,” Antonio Turiel, a co-author of the study, explained. “While the world is debating the potential collapse of the AMOC in the North Atlantic, we’re seeing that the Southern Ocean is drastically changing, as sea ice coverage declines and the upper ocean is becoming saltier,” he went on. “This could have unprecedented global climate impacts.” Read more about the oceanic feedback loop and its potential global consequences at Science Daily, here.
The French public research university Sciences Po will open the Paris Climate School in September 2026, making it the first school in Europe to offer a “degree in humanities and social sciences dedicated to ecological transition.” The first cohort will comprise 100 master’s students in an English-language program. “Faced with the ecological emergency, it is essential to train a new generation of leaders who can think and act differently,” said Laurence Tubiana, the dean of the Paris Climate School.
A fifth of U.S. counties now restrict renewables development, according to exclusive data gathered by Heatmap Pro.
A solar farm 40 minutes south of Columbus, Ohio.
A grid-scale battery near the coast of Nassau County, Long Island.
A sprawling wind farm — capable of generating enough electricity to power 100,000 homes — at the northern edge of Nebraska.
These projects — and hundreds of others — will never get built in the United States. They were blocked and ultimately killed by a regulatory sea-change that has reshaped how local governments consider and approve energy projects. One by one, counties and municipalities across the country are passing laws that heavily curtail the construction of new renewable power plants.
These laws are slowing the energy transition and raising costs for utility ratepayers. And the problem is getting worse.
The development of new wind and solar power plants is now heavily restricted or outright banned in about one in five counties across the country, according to a new and extensive survey of public records and local ordinances conducted by Heatmap News.
“That’s a lot,” Nicholas Bagley, a professor at the University of Michigan Law School, told us. Bagley said the “rash of new land use restrictions” owes partly to the increasing politicization of renewable energy.
Across the country, separate rules restrict renewables construction in 605 counties. In some cases, the rules greatly constrain where renewables can be built, such as by requiring that wind turbines must be placed miles from homes, or that solar farms may not take up more than 1% of a county’s agricultural land. In hundreds of other cases, the rules simply forbid new wind or solar construction at all.
Even in the liberal Northeast, where climate concern is high and municipalities broadly control the land use process, the number of restrictions is rising. At least 59 townships and municipalities have curtailed or outright banned new wind and solar farms across the Northeast, according to Heatmap’s survey.
Even though America has built new wind and solar projects for decades, the number of counties restricting renewable development has nearly doubled since 2022.
When the various state, county, and municipality-level ordinances are combined, roughly 17% of the total land mass of the continental United States has been marked as off limits to renewables construction.
These figures have not been previously reported. Over the past 12 months, our energy intelligence platform Heatmap Pro has conducted what it believes to be the most comprehensive survey of county and municipality-level renewables restrictions in the United States. In part, that research included surveys of existing databases of local news and county laws, including those prepared by the Sabin Center for Climate Change Law at Columbia University.
But our research team has also called thousands of counties, many of whose laws were not in existing public databases, and we have updated our data in real time as counties passed ordinances and opposed projects progress (or not) through the zoning process. This data is normally available to companies and individuals who subscribe to Heatmap Pro. In this story, we are making a high-level summary of this data available to the public for the first time.
Restrictions have proliferated in all regions of the country.
Forty counties in Virginia alone now have an anti-renewable law on the books, effectively halting solar development in large portions of the state, even as the region experiences blistering electricity load growth.
These anti-solar laws have even begun to slow down energy development across the sunny Southwest. Counties in Nevada and Arizona have rejected new solar development in the same parts of the state that have already seen a high number of solar projects, our data show. Since President Trump took office in January, the effect of these local rules have become more acute — while solar developers could previously avoid the rules by proposing projects on federal land, a permitting slowdown at the Bureau of Land Management is now styming solar projects of all types in the region, as our colleague Jael Holzman has reported.
In the Northeast and on the West Coast, where Democrats control most state governments, towns and counties are still successfully fighting and cancelling dozens of new energy projects. Battery electricity storage systems, or BESS projects, now draw particular ire. The high-profile case of the battery fire in Moss Landing, California, in January has led to a surge of local opposition to BESS projects, our data shows. So far in 2025, residents have cited the Moss Landing case when fighting at least six different BESS projects nationwide.
That’s what happened with Jupiter Power, the battery project proposed in Nassau County, Long Island. The 275-megawatt project was first proposed in 2022 for the Town of Oyster Bay, New York. It would have replaced a petroleum terminal and improved the resilience of the local power grid.
But opposed residents began attending public meetings to agitate about perceived fire and environmental risks, and in spring 2024 successfully lobbied the town to pass a six-month moratorium on battery storage systems. The developer of the battery storage system, Jupiter Power, announced it would withdraw after the town passed two consecutive extensions to the moratorium and residents continued agitating for tighter restrictions.
That pattern — a town passes a temporary moratorium that it repeatedly extends — is how many projects now die in the United States.
The Nebraska wind project, North Fork Wind, was effectively shuttered when Knox County passed a permanent wind-energy ban. And the solar project south of Columbus, Ohio? It died when the Ohio Power Siting Board ruled that “that any benefits to the local community are outweighed by public opposition” to the project, which would have generated 70 megawatts, enough to power about 9,000 homes.
The developers of both of these projects are now waging lengthy and expensive legal appeals to save them; neither has won yet. Even in cases where the developer ultimately prevails against a local law, opposition can waste years and raise the final cost of a project by millions of dollars.
Our Heatmap Pro platform models opposition history alongside demographic, employment, voting, and exclusive polling data to quantify the risk a project will face in every county in the country, allowing developers to avoid places where they are likely to be unsuccessful and strategize for those where they have a chance.
Access to the full project- and county-level data and associated risk assessments is available via Heatmap Pro.
And more on the week’s biggest conflicts around renewable energy projects.
1. Jackson County, Kansas – A judge has rejected a Hail Mary lawsuit to kill a single solar farm over it benefiting from the Inflation Reduction Act, siding with arguments from a somewhat unexpected source — the Trump administration’s Justice Department — which argued that projects qualifying for tax credits do not require federal environmental reviews.
2. Portage County, Wisconsin – The largest solar project in the Badger State is now one step closer to construction after settling with environmentalists concerned about impacts to the Greater Prairie Chicken, an imperiled bird species beloved in wildlife conservation circles.
3. Imperial County, California – The board of directors for the agriculture-saturated Imperial Irrigation District in southern California has approved a resolution opposing solar projects on farmland.
4. New England – Offshore wind opponents are starting to win big in state negotiations with developers, as officials once committed to the energy sources delay final decisions on maintaining contracts.
5. Barren County, Kentucky – Remember the National Park fighting the solar farm? We may see a resolution to that conflict later this month.
6. Washington County, Arkansas – It seems that RES’ efforts to build a wind farm here are leading the county to face calls for a blanket moratorium.
7. Westchester County, New York – Yet another resort town in New York may be saying “no” to battery storage over fire risks.