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Climate

Atmospheric Carbon Dioxide Levels Are Rising Faster Than Ever

On emissions observations, speedy DOE deals, and biochar

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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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AM Briefing

‘Starting to Fray’

On Greenland’s deepsea mining ban, Indonesia floating nuclear, and a solar boom

Data center construction.
Heatmap Illustration/Getty Images

Current conditions: Hurricane Trudy has weakened from its peak as a Category 2 storm but still threatens up to 8 inches of rain as it swirls off Baja California • A nor’easter is howling through the Mid-Atlantic this week, hammering the coast with winds of up to 70 miles per hour • A humid overcast has settled over Paris this week as French authorities struggle to regain control after protests over living costs gave way to anarchic riots.


THE TOP FIVE

1. America’s AI infrastructure boom ‘is starting to fray’

At least 47 major data center projects have been delayed, withdrawn, or blocked so far this year, according to data the regulatory intelligence service RegLayer shared with the Financial Times — and that may be a “conservative estimate.” Just 35% of planned data centers are “credible,” analysts told the newspaper, as more than 1,000 communities across the United States now have restrictions on artificial intelligence infrastructure. The data comes as investors look increasingly jittery about AI following ChatGPT-maker OpenAI’s missing a key revenue metric this year.

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Blue
Spotlight

A Giant Data Center Offers a Permitting Reform Test Case

What would happen to Project Jupiter if the Bipartisan American Affordability and Jobs Act is passed?

Project Jupiter.
Heatmap Illustration/Project Jupiter, Library of Congress

One of the nation’s largest data centers is struggling under permitting woes. So let’s play a game: would the bipartisan permitting bill in Congress make the path easier, or might the federal legislation be irrelevant to large hyperscalers under development today?

Meet Project Jupiter, a mega project in southern New Mexico in Dona Ana County under development by Oracle and OpenAI, with financial backing from SoftBank and political support from the Trump administration for being a part of Stargate, a major Trump administration public-private initiative boosting AI development. Project Jupiter would be one of the largest data centers in the country if completed and currently is expected to run on a microgrid powered by fuel cells converting gas to electricity, which the developers claim will burn much cleaner than a typical off-grid gas turbine power plant.

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Hotspots

The Trump Administration Is Still Messing with Offshore Wind Farms

And more of the week’s top news around project fights.

The United States.
Heatmap Illustration/Getty Images

1. New England (and Maryland) – The Trump administration is still messing with offshore wind farms, even while trying to pass a permitting reform deal. Examining the court filings reveals why they may feel empowered to do it — and I’m not sure how this ends.

  • Last Friday, in a legal case brought by anti-wind activists, the Justice Department submitted a motion in federal court to send the construction and operations plan for Orsted’s Revolution Wind project in New England back to the Interior Department for more analysis. On Wednesday, the DOJ entered a similar motion in another case challenging the construction and operations plan for U.S. Wind’s MarWin project off the coast of Maryland in a lawsuit brought by the state’s coastal community of Ocean City.
  • Trump’s actions led some to question whether the president was sabotaging the deal, and others to claim the media coverage itself was an attempt to kill it. Going further, supporters of the bipartisan bill claimed the DOJ's motions were precisely why the bill should become law, implying it would guard offshore wind farms against this sort of maneuver.
  • However, for the bill’s backers, it’s worth considering why the Trump administration believes it has the legal authority to do this. It’s also time to ask whether the bill would actually protect these wind farms against this tactic.
  • To answer those questions, you have to rewind. On May 1, 2025, the Interior Department withdrew a Biden solicitor’s opinion instructing the agency to “strike a rational balance” between wind power and fishing interests. This revocation document is technically not in effect at the moment; one year later, a federal court ruled the opinion was potentially illegal as a part of a preliminary injunction on five anti-renewables actions requested by solar and wind trade groups. The Trump administration is contesting that ruling, and the administration has filed a notice of appeal.
  • In August, despite that opinion being in doubt, a federal judge granted Trump permission under the Outer Continental Shelf Lands Act to remand the construction and operations plan for the now-defunct Atlantic Shores offshore wind farm in the waters of New Jersey. U.S. District Judge Jia Cobb specifically wrote that Atlantic Shores failed to demonstrate the federal government had limitations under OSCLA on revisiting these plans and that the injunction from the litigation on appeal “did not prohibit all reevaluation of agency action.”
  • In the recent Revolution and MarWin filings, Trump’s Justice Department argues the construction and operations plans should be remanded under OSCLA without being vacated. The DOJ motions include claims that previous decision documents did not adequately explain impacts to commercial fishing and other industries that use OSCLA waters. It’s not clear if the administration will win these motions.
  • The bipartisan permitting bill would bar the Interior Department and other federal agencies from taking “any new action that would revoke, rescind, withdraw, terminate, suspend, amend, or alter a federal authorization or permit in effect on or after September 16, 2026,” or “any other action to interfere with or prevent the construction or operation at full capacity of a project that has secured all necessary federal authorizations and permits.” The restriction exempts cases where “the agency is required to take such action by order of a court.” As I wrote in our lengthy piece explaining the bill, this provision has a damages component that allows companies impacted by violations to pursue financial compensation.
  • Here’s the billion-dollar question I expect we won’t have answered unless the bill language is enacted and then litigated: Would the court order exception apply to rulings that grant these motions? Or would the developers be able to sue for damages?

2. Columbia County, N.Y. – New York’s renewable energy permitting office has rejected an upstate solar farm on farmland as a House Democrat representing the area joined hands with the Trump administration in publicly railing against the project.

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