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“Temperature blankets” are the new hot crafting craze.
Trina Messer knew the weather in Dallas-Forth Worth had been unusually warm this year, but she hadn’t anticipated needing her clay-colored yarn in February. “Today we are expecting a high in the 90s!!!,” she marveled in a Facebook update last week, adding regretfully, “I was hoping for more blues, but it is what it is.”
Messer, a retired educator of 30 years, started crocheting in 2022, the natural evolution of a knitting habit she’d picked up while bored during the pandemic. So far, she has made several scarves and hats, a big cardigan “almost like a coat,” and even a couple of throw blankets. Then, in January, she began work on her biggest project yet: a temperature blanket.
Temperature blankets aren’t always blankets — they can be scarves, shawls, and even crocheted snakes. The basic premise, though, is the same: Over the course of a year, knitters, crocheters, and embroiderers add a new row, stitch, or square to their project every day, with the color of yarn corresponding to the temperature of the location where they live. In recent years, this community has grown massive, in essence creating a de facto visual record of climate change for thousands of locations around the world. “From December 1 until today, I’ve had over 26,000 people join,” Sarah Moerdyk, the creator and moderator of Facebook’s largest temperature blanket group, told me in February. For most of its existence, beginning in 2017, the group wasn’t “super active,” hovering around a few hundred members. “In a matter of three months, it’s really blown up.”
Messer chose to break her earth-toned palette into 10-degree intervals, ranging from a white yarn that represents temperatures below 19 degrees Fahrenheit to “chili red” for days over 110. She even has a special yarn, “silver sparkle,” to log days with snowfall. Thankfully, she’d already purchased the clay-colored yarn she’d designated for temperatures between 90 and 99 degrees, even though she hadn’t expected to need it until late March or April.
According to the National Oceanic and Atmospheric Administration, the contiguous United States just concluded its warmest meteorological winter in recorded history. Across the country, temperatures were 5.4 degrees above average; in some states, like Wisconsin, it was nearly 10 degrees above what it should have been for the period between December and February. “This is not normal,” Messer told me a couple weeks ago, when her phone showed it was 91 degrees near Dallas. “Don’t think it’s like this all the time.”
Despite temperature blankets’ resemblance to climatologist Ed Hawkins’ famous warming stripes, the concept predates his 2018 graphics. Perhaps more surprisingly, it wasn’t initially conceived as a commentary on climate change. As far as I — and others — have been able to gather, Kristen Cooper, a craftsperson and beekeeper living in northern British Columbia, was the first to come up with the concept that evolved into the modern temperature blanket challenge when she described a similar scarf pattern in a 2013 blog post. “You record the day’s highest temperature by knitting one row in the color designated for each temperature,” she wrote. By the end of the year, “you will have a visual, colorful graph of the temperatures of your area.”
Cooper told me she, in turn, had been inspired by knitter and author Lea Redmond’s “sky scarf,” a project from 2008 (and later, a book) that involved knitting a row a day in a color that “best captures the essence of the sky out your window.” Redmond was slightly skeptical of the idea that she could be the temperature blanket’s progenitor. Her project tried to capture “the embodied experience of looking at this beauty of the sky every day,” she told me. Temperature projects, by contrast, rely on numbers that people retrieve from a thermometer in their kitchen — or, “I’m guessing, a lot of people just check the internet.”
Lea Redmond’s “sky scarf,” depicting the colors of her local sky, photographed while in progress. The rainbow represents not a temperature variation, but a literal rainbow Redmond spotted in the sky that day.Courtesy of Lea Redmond
Internet data doesn’t have the immediacy of events unfolding in real-time, outside your window. But representing temperature data at all requires a level of emotional remove that Redmond, personally, was a little wary of: For example, when wildfires turned day to night in California in 2020, “temperature-wise, that would not have shown up in a temperature scarf, but in a sky scarf, that stripe would have looked like shit.”
Cooper, for her part, never finished the first temperature scarf because she realized that if she missed a day, she couldn’t accurately make it up — her rural town didn’t have its own weather station — which would defeat the whole point of the project. But while she eventually moved on, swept up by life with a new baby, the knitting world took the concept and ran with it. “I hadn’t really been following along, but every now and then, a completely random post by strangers on Facebook or Instagram will pop up showing a temperature blanket,” Cooper told me. “And I’m always so amazed at how far the concept has traveled.”
Only recently have artists started using conceptual knitting and crocheting projects as explicit commentaries on climate change. In 2017, after the inauguration of President Trump, yarn shop owner Emily McNeil and data scientist Asy Connelly launched the Tempestry Project — which uses standardized colors and ranges to create historic temperature records — half as a joke and half out of real anxiety over the possibility of climate information disappearing from government websites. “We weren’t really thinking about temperature blankets,” McNeil told me. “I guess I knew that they existed, but it wasn’t really on my radar when we started it.”
The Chicago Tempestry Collection, created by participants from all over the country. Emily McNeil’s Paleo New Normal, above, shows the annual deviation from average temperature from 1CE (on the left) to 2021CE (on the right). The darker the blue, the colder than average the year and the darker the red, the warmer than average the year.Courtesy of The Tempestry Project. Photographed by the museum.
Admittedly, sifting through all that climate data can take an emotional toll during the hours or days it takes to complete a tapestry. In addition to tapestries representing individual years, which rely on historical data rather than real-time observations, the Tempestry Project also facilitates multi-year “New Normal” tapestries that are directly inspired by Hawkins’ warming stripes. “The first one that I knit had me in tears as the colder colors just fade out, and you are never going to get those again,” McNeil said. (When I asked how they deal with the feelings brought up by the project, McNeil and Connelly told me dryly, “A lot of wine.”)
Temperature blanket knitters and crocheters can similarly feel alarmed by what’s unfolding in their hands. Moerdyk told me the warm weather in the northern hemisphere has been a big topic in the Facebook group, with some people having to quick-order summer colors or make special trips to the store to accommodate the winter heat in their projects. Perversely, the weirdness becomes kind of thrilling. “It’s fun to hear people say, ‘My colors are going nuts right now,’” Moerdyk said. Especially this early in the year, “to put all of a sudden this really warm temperature color in — it’s memorable. You’ll look back and say, ‘Oh my gosh, remember that time in February we had a 70-degree day? That was crazy.’”
The result is that temperature blankets become an accessible way of discussing climate change, without any of the political baggage. Moerdyk originally started the Facebook group for her friends but has since recorded participants from 1,114 different locations, including every state and over a dozen countries. She said the community has remained surprisingly civil despite all that diversity — some of it surely ideological. But temperature blankets are “not really a controversial topic,” Moerdyk said. “No matter what you believe in, temperature changes.”
Moerdyk, based in Michigan, shows off her finished 2017 temperature blanket.Courtesy of Sarah Moerdyk
For the thousands of hobbyists who’ve taken on temperature blanket projects, the craft becomes a way to witness the immediate changes in their environment that aren’t necessarily wholly negative. “If you’re looking at temperature blankets as a climate marker, that can get heavy,” Heather Walpole, the owner of Ewe Ewe Yarns, which sells temperature blanket starter bundles, told me. “But we’re still living our lives and we have a desire to create.”
Redmond, the sky scarf creator, finds this kind of creative intentionality to be the key. “It’s not like I invented stripes having meaning,” she joked. “But I do think most stripes on most garments in most stores in the United States today are meaningless. That just seems like such a missed opportunity.” It’s not that having a throw blanket or a scarf with weather-coordinated stripes will change the world. But displaying or wearing a beautiful object inspires others to ask questions: Where did you get that? Did you make it yourself? “They’re story sparks,” Redmond said. “They’re excuses to tell your story.”
This already weirdly warm year is still in its relatively chilly opening chapters, but the savviest knitters are already hurrying to stock up on yarns for June and July. As Messer, the Texas-based knitter, told me, “If this summer is anything like last summer,” then her blanket will have “a whole lot of burnt orange and red.”
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On budget negotiations, Climeworks, and a decline in shale
Current conditions: The chance of tornadoes continues through Tuesday in the Great Plains, Midwest, and South after weekend storms in the central U.S. killed at least 27 • The uncontained 18,000-acre Greer Fire in eastern Arizona is now encroaching on the towns of Greer, South Fork, and Eagar • No tropical cyclones have formed anywhere in the Northern Hemisphere yet this year. The average by May 19 is 3.5.
Late Sunday evening, lawmakers on the House Budget Committee reconvened to advance the reconciliation bill in a rare weekend vote. The package had initially failed to progress in a vote on Friday after Republican hardliners, including members of the House Freedom Caucus, expressed concerns that it did not go far enough to reduce the nation’s budget deficit. Though the package is still under negotiation — the four holdouts from Friday voted “present” to express their continued dissatisfaction — Politico reports that “Republican leaders put their commitments to the GOP holdouts in writing.” Per Punchbowl, that included House Speaker Mike Johnson proposing “a quicker phase-out of clean energy tax credits that were put into law as part of the 2022 Inflation Reduction Act. Republican leaders tentatively agreed to cut off all credits by 2028.”
We’ve been closely following what such cuts — such as erasing the electric vehicle tax credit and others for energy efficiency, heat pumps, and rooftop solar, as well as deep cuts to clean energy programs — would do to the IRA. As things stand, Johnson has “a bruising negotiation ahead” as conservatives and moderate Republicans, especially those from states that have been significant beneficiaries of the economic and job-creating upsides of the IRA, remain at odds. The House Rules Committee will hold its hearing on the package on Wednesday morning at 1 a.m. — not a typo — with Republican leadership “warning us that they won’t send members home for the Memorial Day recess until the House passes the reconciliation bill,” Punchbowl writes.
The Mammoth carbon removal plant.John Moore/Getty Images
The Swiss carbon removal company Climeworks allegedly fails to capture enough carbon even to offset its own emissions, an investigation by the Icelandic newspaper Heimildin found. According to the report, since Climeworks began operations in Iceland, “it has captured a maximum of 1,000 tons of CO2 in one year” — not enough to offset its emissions of 1,700 tons of CO2 in 2023. Climeworks operates two plants in Iceland: Orca and the recently opened Mammoth, which together have captured 2,400 tons of CO2, per the report. The goal is for Mammoth to capture more than 36,000 tons per year by the time it is fully installed later in 2025.
Last week, we covered in AM that Climeworks is preparing for significant cuts to its workforce. While the company confirmed those reports, its founder, Jan Wurzbacher, pushed back on Heimildin’s investigation on LinkedIn, writing that Orca and Mammoth have together captured 1,058 tons of net CO2, explaining that “the difference between theoretical and actual output is due to various factors such as planned and unplanned down-times, weather, filtering losses” and additionally, that Mammoth is “still under ramp-up.” In a fact-check on Twitter, Jack Andreasen Cavanaugh, formerly of Breakthrough Energy, added that “operational challenges are to be expected with scale up of any technology, let alone one as nascent and challenging as DAC,” but that Heimildin’s report also “clearly shows the challenges of scaling a necessary climate technology that doesn’t have a market.”
Despite his calls to “drill, baby, drill,” President Trump “is set to preside over a decline in shale production,” with U.S. oil executives warning that the industry is at a “tipping point,”The Wall Street Journal reports. Though crude oil production is expected to increase slightly in 2025, S&P Global Commodities Insights expects production to dip by 13.33 million barrels a day next year, or about 1%.
Trump’s tariffs and OPEC’s recent decision to accelerate oil production are expected to add to the decline in U.S. oil. Production in the Permian Basin was already slowing, and with oil prices around $62.49 a barrel — well below the $85 benchmark one driller said would “encourage new drilling” — many companies are “reluctant to drill through low prices,” the Journal adds. Oil and gas production in the U.S. emits more than 6 million tons of methane per year, Stanford researchers have found, with nearly 10% of the total methane volume produced in the New Mexico portion of the Permian Basin alone going straight into the atmosphere.
The offshore wind industry is preparing to take a “more aggressive approach” in response to the Trump administration’s nearly all-out halt of permits, the Financial Times reports. While the industry had initially “opted for a passive approach” to then-candidate Donald Trump’s rhetoric on the campaign trail, FT notes that companies and industry groups have since increased spending — especially in light of the administration’s decision to cancel Equinor’s Empire Wind project south of Long Island. “The only way out is through,” Liz Burdock, the chief executive of the Oceanic Network, said at an offshore wind conference last week, adding: “It’s time we respond with strength.”
The Tesla Cybertruck is no longer the best-selling electric pickup truck in the United States, InsideEVs reports. Despite selling 39,000 Cybertrucks in 2024, Tesla has seen a company-wide slowdown as CEO Elon Musk’s popularity has cratered with his involvement in the Trump administration’s federal layoffs and program cancellations. In the first quarter of 2025, Tesla registered 7,126 Cybertrucks — falling behind the Ford F-150, which had 7,913 registrations, followed in turn by the Chevrolet Silverado EV in third place, then the GMC Sierra EV, and the Rivian R1T. At the same time, “celebrations aren’t exactly welcome,” InsideEVs writes, “seeing how even the best-selling EV truck in the U.S. has struggled to move over 7,000 units in three months.”
Electric and biodiesel-powered ambulances in New York City have brought the city’s alternative-powered vehicles to 21,500, or more than 75% of the entire fleet. Fire Commissioner Robert Tucker said the next goal was to “eventually rush to emergencies in electric fire trucks,” Gothamist reports.
The company says its first Optimus robots will start rolling off the line in “2026.”
Tesla is a car company everywhere except Wall Street. It delivered some 1.7 million cars in 2024, which were built in factories in Texas, California, Germany, and China. These car sales (and leases and sales of regulatory credits) generated some $77 billion in revenue. Its gross margin on these cars is about 18.5%, or around $14 billion.
When Tesla reported its first quarter earnings, it announced a more than 70% decline in profits, continued falling sales, and ahit to its business from the trade war with China. But its stock climbed the next day, and is now trading at around $350 a share, from $238 before the report, giving it an overall value of over $1 trillion. By some metrics, Tesla makes up more than half of the overall value of the automotive industry.
That’s because it’s not valued like a car company. The company’s investors are putting a huge stake on future innovations that largely spring from the head of Elon Musk, the company’s chief executive. These include promised self-driving cars and a self-driving taxi service, as well as the Optimus humanoid robot, which Musk has said could turn into a $10 trillion business. (For reference, Walmart’s annual revenue is just under $650 billion; Walmart is also worth less than Tesla today.) So far, all we know about the Optimus is that it can dance.
One reason analysts and shareholders cheered its most recent results is because Musk committed to spending less time in Washington trying to reshape the federal government and more time with the company that makes up the lion’s share of his immense personal wealth. But just getting more of Musk’s time is the easy test. A more consequential challenge for the thesis that Tesla can be more than just a company that sells cars to people who drive them is its upcoming robotaxi pilot in Austin, Texas, scheduled for next month.
While Google’s Waymo already has a fully autonomous taxi system available in a few areas of a few cities, Musk has repeatedly promised that Tesla could reach full autonomy globally far more cheaply than Waymo — or, as he puts it, “Waymo needs ‘way mo’ money to succeed 😂.”
But the initial rollout of the robotaxi may be modest. Adam Jonas, a bullish Tesla analyst with Morgan Stanley, wrote in a note to clients on Friday after a conversation with Tesla’s head of investor relations that the Austin debut will “have 10-20 cars” and “plenty of tele-ops to ensure safety levels.”
Another future Tesla business, its Optimus robot, might be able to open up its factory to tours for investors sometime in the last three months of the year, Jonas reported, with commercialization coming by the middle of 2026 at a cost of around $20,000 per unit. The company aims to produce “several thousand” robots by the end of this year, he said. (Though you should be skeptical of any and all dates and deadlines given by Tesla — Musk has been promising an imminent fleet of autonomous Teslas for over five years.) Right now, Jonas wrote, about 12 are being produced at a time, more or less by hand.
And that’s just the mechanics. The software for humanoid autonomy also isn’t there yet: “Tesla admits both intelligence and cost ‘need to come a long way’ to unlock the true potential of humanoid robots,” Jonas wrote. “The neural nets for Optimus are far larger than for cars given greater degrees-of-freedom and far more open-ended tasks.”
Tesla also has more prosaic worries for these next generation businesses. Company officials told Jonas that they’re in an “incredibly competitive” hiring market, especially compared to Chinese companies, which “own the supply chain” for advanced technologies.
While Tesla and Musk are eager to tell the public that the company is orienting itself toward an AI-driven robotic future, some of its other corporate actions may reflect the more present-day concerns of brand management. Tesla sales have declined sharply overseas, and its showrooms have become sites for protest, driven by anger over Musk’s role in the Trump administration.
The company said Friday that it would welcome a new member of its board: Jack Hartung, president and chief strategy officer of Chipotle, a brand with its own history of crisis, stock market volatility, and precarious executive leadership. While it’s unlikely Tesla will get involved in the food business anytime soon, it may benefitfrom learning from Chipotle’s struggles over the last few years of giving people what they expect.
At least one target of Chris Wright’s grant review may run into some sticky statutory issues.
The Department of Energy announced on Thursday that it’s reviewing some 179 awards made by the Biden administration worth $15 billion to ensure they were “consistent with Federal law and this Administration’s policies and priorities.”
But what happens when federal law and Trump’s priorities are at odds?
In the case of at least one awardee, the major U.S. steel producer Cleveland Cliffs, the DOE’s review process may become a mechanism to take funding that is statutorily designated for projects that reduce greenhouse gas emissions and channel it into long-lived fossil fuel assets.
Lourenco Goncalves, the CEO of Cleveland Cliffs, a major U.S. steel producer, said on an earnings call last week that the company was in the process of renegotiating its $500 million award under the Industrial Demonstrations Program. The DOE program funded 33 projects to decarbonize heavy industry, including cement, steel, aluminum, and glass production, with first-of-its-kind or early-scale commercial technologies.
Cleveland Cliffs was originally going to use the money to replace its coal-fired blast furnace at a steel plant in Middletown, Ohio, with a new unit that ran on a mix of hydrogen and natural gas as well as new electric furnaces. Now, the company is working with the Department of Energy to “explore changes in scope to better align with the administration’s energy priorities,” Goncalves told investors. The project would no longer assume the use of hydrogen and “would instead rely on readily available and more economical fossil fuels.”
The CEO later clarified that the company planned to “reline” its blast furnace at Middletown, extending its life, “now that the project is changing scope.”
But the Inflation Reduction Act, which created the Industrial Demonstrations Program, says the funds must be used for “the purchase and installation, or implementation, of advanced industrial technology,” which it defines as tech “designed to accelerate greenhouse gas emissions reduction progress to net-zero.”
“I don’t know at this point what Cleveland Cliffs can confidently say they’re going to do to substantially reduce greenhouse gasses and also deliver gains in public health and jobs to local communities, which is a prerequisite for IDP grant money,” Yong Kwon, a senior advisor for the Sierra Club’s Industrial Transformation Campaign, told me.
The memo announcing the Department of Energy’s review says that it has already reached some “concerning” findings, though it does not describe what was concerning or provide any further detail about the awards under review.
Compared to his peers at other agencies, Energy Secretary Chris Wright has been noticeably quiet about the Department of Government Efficiency’s efforts to slash funding across the Department of Energy. But in March, Axiosobtained documents that said more than 60% of grants awarded under the Industrial Demonstrations Program were being targeted. The following month, CNN reported that Cleveland Cliffs’ Middletown project was on the list slated for termination, noting that it would have secured 2,500 jobs and created more than 100 new, permanent jobs in JD Vance’s hometown.
At the time, Energy Department spokesperson Ben Dietderich told CNN that “no final decisions have been made” about the funding and that “multiple plans are still being considered.” Now it appears the Department may be negotiating with Cleveland Cliffs to develop a cheaper and more politically palatable project.
Meanwhile, House Republicans have also introduced a bill that would rescind any money from the Industrial Demonstrations Program that isn’t obligated, meaning that if the Department of Energy can find a way to legally terminate its contracts with companies, Congress may claw back the money.
The Industrial Demonstrations Program was the Biden administration’s “missing middle” grant program, designed to support projects that were past the early experimental stage, in which case they were no longer candidates for funding from the Advanced Research Projects Agency, but were also not ready for mass deployment, like those supported by the Loan Programs Office. In the case of Cleveland Cliffs, the funding was also aimed at making the U.S. a leader in the future of steelmaking, retaining thousands of jobs, saving the company money, and enabling it to command a higher price for its products.
“If you’re going to maintain blast furnaces, it means you have one foot in a technology that is now quickly becoming outdated that the rest of the global steel industry is transitioning away from,” Kwon told me.
David Super, an expert in administrative law at Georgetown University, told me in an email that if the Department of Energy provides and Cleveland Cliffs accepts funding that does not comply with statute, “the Department officials involved could be in violation of the Antideficiency Act and Cleveland Cliffs could be required to return the money, a modified contract notwithstanding.” The Antideficiency Act prohibits federal employees from obligating funds for projects that are not authorized by law.
Super added that the law also specifies that the money be awarded “on a competitive basis.” As Cleveland Cliffs won the competition with its hydrogen project, allowing it to use the money for a different project at the company’s plant “would thus violate the requirement of competitive awards and would allow the unsuccessful bidders to challenge this funding award.”
Neither Cleveland Cliffs nor the Department of Energy responded to a request for comment.
Leaks to the press have signaled that the Department of Energy may be taking a similar approach with the hydrogen hubs, potentially terminating contracts to develop renewable energy-based projects — all of which are in blue states — while allowing natural gas-based projects in red states to continue.
It is still not clear how the agency will handle its $3.5 billion direct air capture hubs, which news outlets have reported may also be under threat. On Friday, however, the oil and gas company Occidental, which was awarded a contract to develop a DAC hub in Texas, announced that the Abu Dhabi National Oil Company is considering investing up to $500 million in the project as part of a new joint-venture agreement. The press release notes that the agreement was signed during President Trump’s visit to the United Arab Emirates.
Last week, Senator Lisa Murkowski of Alaska said during a confirmation hearing for Kyle Haustveit, the nominee to head the Office of Fossil Energy, that two carbon capture projects in her state were “in limbo” due to the agency’s spending review. The same day, in another hearing, Representative Debbie Wasserman Schultz of Florida accused Wright of having frozen $67 billion worth of funds and asked him to commit to releasing it.
Wright denied this. “We’re not withholding any funds and we’ve paid every invoice we’ve had for work done and funds that are due,” he replied. But he went on to clarify that the agency is “engaging with” recipients “to make sure American taxpayer monies are being spent in thoughtful, reasonable ways.”
According to efficiency department data, the DOE has “terminated” 39 contracts worth $60 million and five grants worth $3.4 million. The contracts include news subscriptions, various technical support services, and a $22 million contract with consulting firm McKinsey for “rapid response deliverables” for the Office of Clean Energy Demonstrations, the department that runs the Industrial Demonstrations Program. The grants include three Advanced Research Projects Agency awards to explore using geologic stores of hydrogen, and another to reduce methane emissions from natural gas flares.