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Climate

Atmospheric Carbon Dioxide Levels Are Rising Faster Than Ever

On emissions observations, speedy DOE deals, and biochar

Atmospheric Carbon Dioxide Levels Are Rising Faster Than Ever
Heatmap Illustration/Getty Images

Current conditions: Parts of North Dakota could feel wind chills of minus 50 degrees Fahrenheit in the coming days • A fire at the world’s largest battery storage plant prompted evacuations and health warnings in California’s Monterey County • It is warm and sunny in Doha, where negotiators signed a ceasfire deal between Israel and Hamas.

THE TOP FIVE

1. Atmospheric CO2 levels are rising faster than ever

Data from one of the longest-running and most reputable carbon dioxide observatories in the world suggests that atmospheric levels of the greenhouse gas increased at a record rate in 2024. The Mauna Loa observatory in Hawaii has been tracking atmospheric CO2 since 1958, and is “a good guide to rise in global average CO2 concentration,” according to the UK’s Met Office. Mauna Loa’s measurements show that between 2023 and 2024, CO2 concentrations rose by about 3.6 parts per million, the largest annual increase on record, meaning that not only are CO2 emissions still rising, but they’re rising faster than ever. This growth is not compatible with any pathways to limiting global temperature rise to 1.5 degrees Celsius set out by the Intergovernmental Panel on Climate Change.

Annual CO2 concentrations and forecasts in PPM. The Keeling Curve and Met Office

Long-term CO2 concentrations dating back 2,000 years.The Keeling Curve and Met Office

“The actual CO2 rise of 3.58ppm was even faster than expected,” a group of climate researchers from the Met Office wrote for Carbon Brief. They speculate that the loss of natural carbon sinks – especially through wildfires and their resulting emissions – may explain the leap. Last year was the warmest on record, and the first calendar year to see temperatures rise above the 1.5 degrees Celsius threshold. It was also a record year for wildfires in the Americas.

2. DOE finalizes $6.57 billion Rivian loan

The Department of Energy’s Loan Programs Office yesterday closed on a $6.57 billion loan to Rivian, less than two months after announcing the conditional loan. The money will help finance Project Horizon, a 9 million square foot EV manufacturing plant in Georgia, where Rivian plans to make some 400,000 mass market EVs per year, starting with its R2 and R3 models. It will support 2,000 full-time construction jobs and 7,500 operations jobs through 2030. “At full capacity, the EVs manufactured at the facility are expected to yield an annual fuel consumption savings of approximately 146 million gallons of petroleum,” the DOE said. The administration also closed a $1.66 billion loan for New York-based Plug Power to build six hydrogen plants. The LPO will likely come under scrutiny by the incoming Trump administration. In more Rivian news, Volkswagen is reportedly exploring ways to “deepen” its existing partnership with the carmaker.

3. Biden administration offers $23 billion in loans to help clean up power utilities

The Department of Energy was busy yesterday. On top of the aforementioned financing deals, the LPO also offered $22.92 billion in conditional loans to eight electric utilities to help them make upgrades to boost clean power generation, storage, and transmission, as well as replacing leaky gas lines. The projects span 12 states and would serve nearly 15 million customers. The New York Times noted that this is “one of the biggest commitments ever made” by the LPO. With just three days left before Trump takes office, the loans still need to be finalized. But DOE sources told the Times that the loans are legally binding and difficult to revoke.

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  • 4. Takeaways from Zeldin and Burgum confirmation hearings

    Confirmation hearings for Donald Trump’s energy and environment appointees continued yesterday, with Lee Zeldin and Doug Burgum appearing before the Senate for their nominations as Environmental Protection Agency administrator and secretary of the Interior. For many in the renewables space, Burgum’s hearing offered little in the way of reassurances. He referenced concerns about the “baseload” of the grid more than 15 times during the hearing, primarily as a way to oppose the buildout of renewable energy. Burgum also touted “clean coal” (not so clean) as a pathway to decarbonizing, defended Trump’s skepticism of wind power, and dodged questions seeking reassurance about his commitment to protecting federal lands. EPA nominee Zeldin, meanwhile, said he believes climate change is real and conceded that carbon dioxide traps heat, but defended Trump’s denialism on the issue. He said he wants to make the EPA more efficient and transparent, and indicated that industry perspectives on environmental rules and enforcement actions will likely receive a kinder ear from the agency under his leadership.

    5. Google goes big on biochar

    In case you missed it: Google gave biochar a boost yesterday when it announced it will buy 200,000 tons of carbon removal credits by 2030 from two firms, Indian company Varaha and startup Charm Industrial. As Heatmap’s Katie Brigham has reported, biochar is made by heating up biomass such as wood or plants in a low-oxygen environment via a process called pyrolysis, thereby sequestering up to 40% to 50% of the carbon contained within that organic matter for hundreds or even thousands of years. Varaha will generate biochar from an invasive plant; Charm will use biomass from forest management. Biochar is a “cheap, nature-based method” of carbon removal, Brigham says, and it’s been getting attention from corporate buyers. The Google partnerships are “the largest biochar carbon removal deals to date,” and aim to help the nascent industry scale.

    THE KICKER

    “This isn’t a fiscal blip.”

    –Democratic Sen. Sheldon Whitehouse, former chair of the Senate Budget Committee, warns of an “accelerated collapse” in insurance markets due to climate disasters.

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    Politics

    Exclusive: Over 530 Local Laws Now Seek to Ban or Restrict Data Centers

    The overwhelming majority of the ordinances were enacted this year, a Heatmap Pro review shows. They’re helping to drive an unprecedented surge of data center cancellations.

    Local laws restricting or banning data centers.
    Heatmap Illustration | Unsplash

    America’s data center backlash is gaining steam.

    Anti-data-center protesters briefly interrupted President Trump’s speech at a General Motors facility in Michigan earlier this week. A day later, the country music legend Willie Nelson called on Americans to “fight against data centers invading our land.”

    Washington has yet to pass major data center regulation. But the backlash is already reshaping local zoning and land use codes across the country, according to an extensive review of public records conducted by Heatmap Pro. A surge of new restrictions and bans have killed dozens of proposed data centers this year.

    More than 500 counties or municipalities now actively restrict or block new data centers, according to the review. This tally includes only the most severe constraints — such as steep setback requirements, impossible noise limits, or outright bans on permit approvals — that all but forbid the construction of a data center.

    The overwhelming majority of these restrictions have been enacted since the beginning of the year. Nearly 190 have been passed since June 1.

    The pace of moratoriums is “accelerating,” Peter Freed, a founding partner at the Near Horizon Group and the former director of energy strategy at Meta, told me.

    Broadly, these new local restrictions seem to be succeeding. More than 50 data centers have been canceled so far this year after facing local pushback of some kind, according to a Heatmap Pro review of press accounts, public records, and project cancellations.

    That’s more than twice as many projects as were canceled under similar circumstances in all of 2025, according to our data. Eight projects were canceled in July alone.

    Ominously for developers, the rate of projects facing cancellations seems to be increasing over time.

    Keep reading...Show less
    AM Briefing

    Uncommon Wealth

    On ‘precariously low’ oil stockpiles, China’s ammonia milestone, and a PFAS destroyer

    Hundred dollar bills.
    Heatmap Illustration | Unsplash

    Current conditions: The wildfires in France and Europe are slowing, but three firefighters have died and the looming heat wave could bring yet more disaster • New York and New Jersey are facing flash floods as a storm system makes its way across the Northeast United States • Days of thunderstorms are causing floods across Vientiane, Laos’ sprawling capital.

    THE TOP FIVE

    1. Commonwealth Fusion Systems raises another $1 billion

    Last month, I toured Commonwealth Fusion Systems’ headquarters in small-town central Massachusetts. The place was abuzz in activity. On the factory floor side, workers were assembling the magnets needed to ultimately form the torus-shaped reactor — think a giant doughnut with an interior that curves like the core of an apple — called the tokamak. On the actual reactor side, SPARC — the prototype that CFS expects will make history next year as the first private enterprise and only tokamak to ever generate more energy that it took to start the fusion reaction — was starting to look like a functional machine from my view on a second-story walkway overlooking the sterile assembly room. The old joke that fusion is the energy source of tomorrow — and always will be — certainly didn’t ring as funny now. I’ll tell you who isn’t laughing: All the new investors that just poured another $1 billion into CFS. The company announced its latest funding round early this morning, which brings the startup’s total fundraising since its launch as a spinout from the Massachusetts Institute of Technology in 2018 to $4 billion. CFS now accounts for 30% of all the private capital that has flowed into fusion. What distinguishes this round, my colleague Katie Brigham wrote, is that the money is coming from a bunch of institutional investors, such as pension funds and sovereign wealth funds, rather than venture capitalists. On a call with reporters this week, CFS’s newly-named chief financial officer, Lorence Kim, said it’s the first-time institutional investors comprised the majority of the new funding. When I asked the company’s spokeswoman for a percentage estimate breaking down the new versus old investors in this round, she declined to comment. Kim cautioned that the funding isn’t the kind of capital you raise before launching on a stock market. But his hire is notable. The former Goldman Sachs banker famously helped take the pharmaceutical giant Moderna public and held the top financial role through the start of the Covid-19 pandemic.

    Keep reading...Show less
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    Energy

    Commonwealth Fusion Systems Wins Over New Class of Investors With $1 Billion Raise

    Risk-averse but deep-pocked institutional investors join the party.

    Commonwealth Fusion Systems Wins Over New Class of Investors With $1 Billion Raise

    When the Fusion Industry Association surveyed the sector earlier this month, it found that the industry’s 56 active companies had collectively raised more than $14.2 billion over the past five years. But an ever-larger share of that money is ending up in the hands of one startup: Commonwealth Fusion Systems.

    With its latest $1 billion funding round, announced today, the MIT spinout now accounts for nearly 30% of all capital in the industry. The new financing, led by a wave of institutional investors entering the sector for the first time, will support construction of the company’s first commercial power plant in Chesterfield County, Virginia, which CEO Bob Mumgaard says is on track to come online in the early 2030s.

    Keep reading...Show less