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The effort to measure companies’ carbon footprints is remarkably imprecise — and suddenly more important than ever.
Large companies generate a gargantuan amount of carbon-dioxide pollution.
Take the big-box retailer Costco. During the financial year 2020, it emitted 144.5 million metric tons of carbon dioxide — a number on par with the Philippines’ annual emissions. Nike pumped out the equivalent of 11 million metric tons of carbon during the same period, a footprint roughly equal to Zimbabwe’s. Apple, meanwhile, was somewhere on the order of Estonia.
You’ve probably seen data like this before. But here’s a question: How do companies actually arrive at these numbers? How did Costco know its carbon footprint in 2020? Carbon dioxide and other climate-warming gases are invisible, potent even in trace amounts, and constantly absorbed and produced by hundreds of billions of different organisms and chemicals around the world. Costco alone directly or indirectly choreographs the actions of millions of people and things: sailors and longshoremen, factory workers and cotton farmers, employees coming in for their shift and marketing managers spending down an advertising budget.
How could a company like that possibly know its carbon footprint?
Here’s the sorry answer: Most companies don’t. They estimate.
Those estimates are suddenly looking more important. New laws and a proposal from the U.S. Securities and Exchange Commission could soon require that companies treat this data with the same seriousness that they devote to their accounting books. Companies now need their corporate climate data to do something that it was never meant to do: help them make decisions.
So the race is on to help companies estimate better. On Wednesday, Watershed, a startup that helps companies run their climate programs, bought VitalMetrics, a climate-data mainstay that owns and manages one of the most important tools that companies use to estimate their carbon footprints.
That tool, called the Comprehensive Environmental Data Archive, or CEDA, provides what’s known as carbon-intensity data for hundreds of products as made in more than 140 countries. It is one of several tools that has been used to advise Microsoft, Kellogg’s, and Virgin Atlantic since Sangwon Suh, an industrial-ecology professor and Intergovernmental Panel on Climate Change author, founded VitalMetrics in 2005.
Watershed’s acquisition of VitalMetrics signals that corporate climate data is entering a new stage, Taylor Francis, one of the company’s cofounders, told me. Watershed, at least, is a different kind of company than the climate bean counters of yore: Founded by former employees of the payments behemoth Stripe, it has raised $84 million from the venture-capital firms Kleiner Perkins, Sequoia Capital, as well as the billionaire Laurene Powell Jobs.
“The traditional corporate climate complex was basically designed for a world of numbers in the corporate social responsibility report, and a pledge, and a press release,” he said. ”We’re shifting to the new world of numbers in a 10-K,” the annual financial report that public companies must file with the government, “and a planet running out of time.”
I will admit I had it all wrong. I had assumed that because corporate carbon footprints sounded precise and vaguely science-adjacent, they were produced by something like a scientific methodology themselves. I imagined a company’s employees — or at least their consultants — collecting emissions data smokestack by smokestack, pacing around factories while studying air-quality monitors, and doing careful math somewhere in the vicinity of a bunsen burner or two. (I believed this, I should add, despite knowing that many corporate climate reports contain glaring arithmetic errors and sometimes literally do not add up.)
That sort of methodology is the “platonic ideal of carbon accounting,” Francis, the Watershed cofounder, told me. In a perfect world, a company would have measured the per-ton emissions of each of its processes, and it would know these for each of its suppliers down to the raw material.
Yet this is still a ways off for most companies. Instead, the bulk of carbon accounting today now happens in spreadsheets, and it uses dollars, not tons, as an input. Each consumer good or raw commodity aligns to a “factor,” a multiplier that says that for every dollar spent on, say, glass or aluminum, a certain amount of carbon is emitted. A climate team inputs the dollar amount, multiplies it by the factor, and arrives at a result: a company’s annual carbon footprint.
Until now, Watershed and other firms have often calculated corporate climate emissions by using a U.S. Environmental Protection Agency-made database called the Environmentally Extended Input-Output, or EEIO, model, Francis said. “You start with very coarse input data like, we spent $100 million on marketing. So you go to the old EEIO database, and the EEIO says that in the U.S. 10 years ago, the carbon emissions per dollar of marketing spend was X, and you multiply that to get your emissions number.”
“I think that gets you into the right order of magnitude,” he said, but it was messy. The EEIO data is roughly a decade out of date, meaning it overstates climate pollution from the power grid and understates the role of inflation.
VitalMetrics’ CEDA database, on the other hand, is updated every year. It contains carbon-intensity factors for more than 300 products and — most important — it varies these factors based on the country of origin. Going forward, Watershed will calculate corporate emissions data using these CEDA estimates.
This kind of data-gathering isn’t fine-tuned enough for companies to actually make better decisions with their data, Madison Condon, a law professor at Boston University who has criticized the reigning approach, told me. Under the current approach, a company can improve their carbon-accounting data only by shifting production to countries with lower emissions factors. It doesn’t get credit for, say, installing technologies at its existing factories that lower emissions.
That is unsustainable because corporate carbon accounting is becoming important to governments around the world. The Securities and Exchange Commission has proposed requiring publicly traded companies to disclose carbon data and major climate-related risks. Even if that rule is swatted away by the Supreme Court, the European Union will soon require tens of thousands of companies to disclose sustainability and emissions data; these rules could apply to more than 10,000 foreign companies, including many mainstream American brands. California could soon pass its own law mandating that companies produce carbon-accounting data.
Even apart from those disclosure requirements, carbon-footprint requirements are now written into laws. Some of the Inflation Reduction Act’s subsidies will pay out only if a product’s carbon intensity is below a certain threshold.
Eventually, Watershed hopes to produce a hybrid tool that can use dollar-based production factors, tonnage estimates, and technology-based improvements together, Francis told me. More broadly, Watershed’s acquisition of Vitalmetrics — not to mention Watershed itself — is a gamble about how the climate economy will eventually work.
“Five years from now, the disclosure piece is just part of the water. No one talks or writes about it because it is an expected part of doing business for every company. And it’s relatively low friction. It’s a part of your annual close, your quarterly close,” Francis told me. “We don’t really talk about climate as a political issue because businesses don't think of climate as a political issue because they see it as, you know, the biggest growth sector of the decade.”
Of course, if that’s true, then companies may not need a startup like Watershed to do their climate counting for them. Bog-standard corporate accountants, like KPMG or Deloitte, will do the task just fine.
But Watershed is betting that climate accounting will remain both more technical and more central to a company’s employee and investor relationships than, say, its power bill. Just as companies use Salesforce specifically to manage customer relationships, or Justworks to manage payroll and benefits, Watershed hopes they will need a single place to manage all their climate data — a single source of emissions truth. It’s investing in its database to try to make that bet payoff.
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Imagine for a moment that you’re an aerial firefighter pilot. You have one of the most dangerous jobs in the country, and now you’ve been called in to fight the devastating fires burning in Los Angeles County’s famously tricky, hilly terrain. You’re working long hours — not as long as your colleagues on the ground due to flight time limitations, but the maximum scheduling allows — not to mention the added external pressures you’re also facing. Even the incoming president recently wondered aloud why the fires aren’t under control yet and insinuated that it’s your and your colleagues’ fault.
You’re on a sortie, getting ready for a particularly white-knuckle drop at a low altitude in poor visibility conditions when an object catches your eye outside the cockpit window: an authorized drone dangerously close to your wing.
Aerial firefighters don’t have to imagine this terrifying scenario; they’ve lived it. Last week, a drone punched a hole in the wing of a Québécois “super soaker” plane that had traveled down from Canada to fight the fires, grounding Palisades firefighting operations for an agonizing half-hour. Thirty minutes might not seem like much, but it is precious time lost when the Santa Ana winds have already curtailed aerial operations.
“I am shocked by what happened in Los Angeles with the drone,” Anna Lau, a forestry communication coordinator with the Montana Department of Natural Resources and Conservation, told me. The Montana DNRC has also had to contend with unauthorized drones grounding its firefighting planes. “We’re following what’s going on very closely, and it’s shocking to us,” Lau went on. Leaving the skies clear so that firefighters can get on with their work “just seems like a no-brainer, especially when people are actively trying to tackle the situation at hand and fighting to save homes, property, and lives.”
Courtesy of U.S. Forest Service
Although the super soaker collision was by far the most egregious case, according to authorities there have been at least 40 “incidents involving drones” in the airspace around L.A. since the fires started. (Notably, the Federal Aviation Administration has not granted any waivers for the air space around Palisades, meaning any drone images you see of the region, including on the news, were “probably shot illegally,” Intelligencer reports.) So far, law enforcement has arrested three people connected to drones flying near the L.A. fires, and the FBI is seeking information regarding the super soaker collision.
Such a problem is hardly isolated to these fires, though. The Forest Service reports that drones led to the suspension of or interfered with at least 172 fire responses between 2015 and 2020. Some people, including Mike Fraietta, an FAA-certified drone pilot and the founder of the drone-detection company Gargoyle Systems, believe the true number of interferences is much higher — closer to 400.
Law enforcement likes to say that unauthorized drone use falls into three buckets — clueless, criminal, or careless — and Fraietta was inclined to believe that it’s mostly the former in L.A. Hobbyists and other casual drone operators “don’t know the regulations or that this is a danger,” he said. “There’s a lot of ignorance.” To raise awareness, he suggested law enforcement and the media highlight the steep penalties for flying drones in wildfire no-fly zones, which is punishable by up to 12 months in prison or a fine of $75,000.
“What we’re seeing, particularly in California, is TikTok and Instagram influencers trying to get a shot and get likes,” Fraietta conjectured. In the case of the drone that hit the super soaker, it “might have been a case of citizen journalism, like, Well, I have the ability to get this shot and share what’s going on.”
Emergency management teams are waking up, too. Many technologies are on the horizon for drone detection, identification, and deflection, including Wi-Fi jamming, which was used to ground climate activists’ drones at Heathrow Airport in 2019. Jamming is less practical in an emergency situation like the one in L.A., though, where lives could be at stake if people can’t communicate.
Still, the fact of the matter is that firefighters waste precious time dealing with drones when there are far more pressing issues that need their attention. Lau, in Montana, described how even just a 12-minute interruption to firefighting efforts can put a community at risk. “The biggest public awareness message we put out is, ‘If you fly, we can’t,’” she said.
Fraietta, though, noted that drone technology could be used positively in the future, including on wildfire detection and monitoring, prescribed burns, and communicating with firefighters or victims on the ground.
“We don’t want to see this turn into the FAA saying, ‘Hey everyone, no more drones in the United States because of this incident,’” Fraietta said. “You don’t shut down I-95 because a few people are running drugs up and down it, right? Drones are going to be super beneficial to the country long term.”
But critically, in the case of a wildfire, such tools belong in the right hands — not the hands of your neighbor who got a DJI Mini 3 for Christmas. “Their one shot isn’t worth it,” Lau said.
Plus 3 more outstanding questions about this ongoing emergency.
As Los Angeles continued to battle multiple big blazes ripping through some of the most beloved (and expensive) areas of the city on Friday, a question lingered in the background: What caused the fires in the first place?
Though fires are less common in California during this time of the year, they aren’t unheard of. In early December 2017, power lines sparked the Thomas Fire near Ventura, California, which burned through to mid-January. At the time it was the largest fire in the state since at least the 1930s. Now it’s the ninth-largest. Although that fire was in a more rural area, it ignited for some of the same reasons we’re seeing fires this week.
Read on for everything we know so far about how the fires started.
Six major fires started during the Santa Ana wind event last week:
Officials are investigating the cause of the fires and have not made any public statements yet. Early eyewitness accounts suggest that the Eaton Fire may have started at the base of a transmission tower owned by Southern California Edison. So far, the company has maintained that an analysis of its equipment showed “no interruptions or electrical or operational anomalies until more than one hour after the reported start time of the fire.” A Washington Post investigation found that the Palisades Fire could have risen from the remnants of a fire that burned on New Year’s Eve and reignited.
On Thursday morning, Edward Nordskog, a retired fire investigator from the Los Angeles Sheriff’s Department, told me it was unlikely they had even begun looking into the root of the biggest and most destructive of the fires in the Pacific Palisades. “They don't start an investigation until it's safe to go into the area where the fire started, and it just hasn't been safe until probably today,” he said.
It can take years to determine the cause of a fire. Investigators did not pinpoint the cause of the Thomas Fire until March 2019, more than two years after it started.
But Nordskog doesn’t think it will take very long this time. It’s easier to narrow down the possibilities for an urban fire because there are typically both witnesses and surveillance footage, he told me. He said the most common causes of wildfires in Los Angeles are power lines and those started by unhoused people. They can also be caused by sparks from vehicles or equipment.
At more than 40,000 acres burned total, these fires are unlikely to make the charts for the largest in California history. But because they are burning in urban, densely populated, and expensive areas, they could be some of the most devastating. With an estimated 9,000 structures damaged as of Friday morning, the Eaton and Palisades fires are likely to make the list for most destructive wildfire events in the state.
And they will certainly be at the top for costliest. The Palisades Fire has already been declared a likely contender for the most expensive wildfire in U.S. history. It has destroyed more than 5,000 structures in some of the most expensive zip codes in the country. Between that and the Eaton Fire, Accuweather estimates the damages could reach $57 billion.
While we don’t know the root causes of the ignitions, several factors came together to create perfect fire conditions in Southern California this week.
First, there’s the Santa Ana winds, an annual phenomenon in Southern California, when very dry, high-pressure air gets trapped in the Great Basin and begins escaping westward through mountain passes to lower-pressure areas along the coast. Most of the time, the wind in Los Angeles blows eastward from the ocean, but during a Santa Ana event, it changes direction, picking up speed as it rushes toward the sea.
Jon Keeley, a research scientist with the US Geological Survey and an adjunct professor at the University of California, Los Angeles told me that Santa Ana winds typically blow at maybe 30 to 40 miles per hour, while the winds this week hit upwards of 60 to 70 miles per hour. “More severe than is normal, but not unique,” he said. “We had similar severe winds in 2017 with the Thomas Fire.”
Second, Southern California is currently in the midst of extreme drought. Winter is typically a rainier season, but Los Angeles has seen less than half an inch of rain since July. That means that all the shrubland vegetation in the area is bone-dry. Again, Keeley said, this was not usual, but not unique. Some years are drier than others.
These fires were also not a question of fuel management, Keeley told me. “The fuels are not really the issue in these big fires. It's the extreme winds,” he said. “You can do prescription burning in chaparral and have essentially no impact on Santa Ana wind-driven fires.” As far as he can tell, based on information from CalFire, the Eaton Fire started on an urban street.
While it’s likely that climate change played a role in amplifying the drought, it’s hard to say how big a factor it was. Patrick Brown, a climate scientist at the Breakthrough Institute and adjunct professor at Johns Hopkins University, published a long post on X outlining the factors contributing to the fires, including a chart of historic rainfall during the winter in Los Angeles that shows oscillations between wet and dry years over the past eight decades.
But climate change is expected to make dry years drier and wet years wetter, creating a “hydroclimate whiplash,” as Daniel Swain, a pre-eminent expert on climate change and weather in California puts it. In a thread on Bluesky, Swain wrote that “in 2024, Southern California experienced an exceptional episode of wet-to-dry hydroclimate whiplash.” Last year’s rainy winter fostered abundant plant growth, and the proceeding dryness primed the vegetation for fire.
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Editor’s note: This story was last update on Monday, January 13, at 10:00 a.m. ET.
On tough questioning from the Senate, LA’s fires, and EV leases
Current conditions: Odd weather has caused broccoli and cauliflower plants to come up far too early in the UK • Another blast of Arctic air is headed for the Midwest • An air quality alert has been issued in Los Angeles due to windblown dust and ash.
Firefighters in Los Angeles are scrambling to make progress against the ongoing wildfires there before dangerous winds return. The Palisades and Eaton fires have now been burning for almost a week, charring nearly 40,000 acres, damaging more than 12,000 structures, and leaving at least 24 people dead. They are 13% and 27% contained, respectively. Residents who lost their homes are desperately trying to find new properties to rent or buy in a tight market, with reports of intense bidding wars as landlords hike rents. The economic toll of this disaster is estimated to be between $135 billion and $150 billion. Red flag warnings are in effect today, with critical fire conditions and extreme wind gusts forecast through Wednesday.
Red fire retardant on pool furniture. Justin Sullivan/Getty Images
A few updates on the incoming administration: President-elect Donald Trump tapped Ed Russo to run an advisory environmental task force. Trump said Russo will oversee “initiatives to create great jobs and protect our natural resources, by following my policy of CLEAN AIR and CLEAN WATER. Together, we will achieve American Energy DOMINANCE, rebuild our Economy, and DRILL, BABY, DRILL.” Russo is a longtime Trump loyalist who served as an environmental consultant to the Trump Organization and wrote a book titled “Donald J. Trump: An Environmental Hero”.
Trump also announced his deputies for some key environmental and energy Cabinet positions over the weekend, including:
More than a dozen of Trump’s Cabinet nominees face Senate confirmation hearings this week. Doug Burgum, who is up for interior secretary, has a hearing before the Committee on Energy and Natural Resources tomorrow. Energy secretary nominee Chris Wright has one on Wednesday. EPA nominee Lee Zeldin has one with the Environment and Public Works Committee on Thursday.
Affordable EV leases are “the car market’s hottest deal,” according toThe Wall Street Journal. Car companies are changing the way they pitch EVs to buyers, offering short-term leases with low monthly payments. These deals are attractive to first-time EV shoppers who are still a little bit hesitant to commit, as well as people on a tighter budget. Roughly 45% of EV transactions at the end of 2024 were leases, much higher than the auto industry as a whole. And a provision in the Inflation Reduction Act means leased cars can more easily qualify for the government’s $7,500 EV tax credit. “The proliferation of lease deals has made EVs more accessible to buyers who couldn’t afford their higher sticker prices,” the Journal said. “For the automakers, it is helping get more EVs into customers’ hands after a choppy start for their electric-car operations.”
Wind power could overtake coal in Europe for electricity generation for the first time this year, according to the energy think tank Ember. At the end of 2024, wind power was closing in on coal, coming in at just 4% below the fossil fuel in power generation as the continent’s coal plants close. “That output gap could easily be made up over the course of 2025 by an increase in regional wind generation capacity or by higher average wind speeds at turbine level, or by some combination of both,” Reutersreported. Last year wind power accounted for 20% of electricity consumed in the EU, and the goal is to get that up to 50% by 2050. But as Electreknoted, the same problems plaguing projects in the U.S. – permitting delays and connection bottlenecks – are slowing things down. The EU accounts for 4.6% of global power sector emissions.
The World Health Organization’s European Centre for Environment and Health has issued a callout for “examples of interventions to protect and promote mental health in the face of climate change.” The group wants to take stock of these interventions so that it can identify gaps in mental health care and share some best practices. The callout is aimed at Europe only, but it is indicative of a growing awareness of how the worsening climate crisis is taking a toll on mental health worldwide.
“There’s a lot of finger-pointing going around, and I would just try to emphasize that this is a really complex problem. We have lots of different responsible parties. To me, what has happened requires more of a rethink than a blame game.” –Faith Kearns, a water and wildfire researcher at Arizona State University, speaking to Heatmap about the spread of misinformation around the LA fires