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Extreme heat is the deadliest weather phenomenon in the United States. It's also one of the easiest to underestimate: We feel it on our skin, or perhaps see it shimmering in the air around us, but it doesn't announce itself with the destructive aplomb of a hurricane or wildfire. Still, heat waves are becoming practically synonymous with summer.
Climate change is only making heat waves worse. They're getting more frequent, up from an average of two per year in the United States in the 1960s to six per year in the 2010s and '20s. They're also about a day longer than they were in the ‘60s, and they're more intense; those two factors combined, in particular, make them more deadly. This year's expected El Niño will bring even more heat with it: NOAA's summer outlook for the United States, shown below, paints a swath of above-average temperatures across much of the country.
NOAA's seasonal temperature outlook for the summer of 2023.National Oceanic and Atmospheric Administration
I’ve spent a lot of time thinking about how to cover heat waves. Each is unique — suffering of any kind is always unique, even if the broad strokes are not — yet the things one can say about them are, for the most part, largely the same. Records will break, power grids will strain, and people will be hurt: This is the reality of climate change.
So this year, we are trying an experiment: We will document particularly notable heat waves around the world as they happen, but rather than devote separate stories to them, each heat wave will get a short entry within this larger page. We will call out especially vivid details or statistics and include links to local outlets that can provide more information to anyone looking for it.
The goal here is to create a record of the very real impact of climate change today. By the end of the summer, this page will likely be filled with entry after entry showcasing the ways heat affected people around the world over the course of a few months. This is, I am aware, potentially fertile ground for climate anxiety, but our hope is that the project can help us recognize how our lives are changing and allow us to refocus on what we can do to adapt to our new reality.
Each entry has its own URL. If you wish to share details of any particular heat wave, simply scroll to that entry and hit the share button on your phone or copy the link in your browser. If you'd like to share this tracker as a whole, scroll back up to this introduction. This timeline will be in reverse chronological order, or in other words the newest events will appear at the top of the page.
This project is publishing in the midst of a heat wave hitting multiple Asian countries, and we’ve also included a couple of heat waves that have already come and gone; as the summer progresses, you'll see updates from the entire Heatmap staff and the gradual shaping of a larger story of heat. Again, this is an experiment, and we'd love to hear what you think about it — if you have strong thoughts one way or another, please send them to neel [at] heatmap [dot] news. —Neel Dhanesha
September 6: As we near the end of the summer — though ambient temperatures this week may suggest otherwise — the World Meteorological Organization (WMO) has announced that Earth just had its hottest three-month period on record, and the year so far is the second-warmest after 2016, which saw an extreme El Niño.
“Climate breakdown has begun,” said UN Secretary-General António Guterres in a statement. “Leaders must turn up the heat now for climate solutions. We can still avoid the worst of climate chaos — and we don’t have a moment to lose.”
According to the Copernicus Climate Change Service, August is estimated to have been around 1.5°C warmer than the preindustrial average. Last month saw the highest global average sea surface temperatures on record, at 20.98°C, and Antarctic sea ice was at a record low for that point in the year. Those sea surface temperatures will have a significant impact on hurricane season; as we saw with Idalia, extremely high ocean temperatures can supercharge tropical storms.
These numbers are no surprise — scientists have, of course, been warning of these catastrophic impacts for years — and this report is just the latest in a long line of UN reports that catalog the ways our planet is changing. The question, as always, is if this report will spur any more action than the previous ones did, or whether it will amount to yet another howl lost in the wind. —Neel Dhanesha
August 23-28: On Thursday, record-breaking heat tied the hottest temperature ever recorded in Houston at 109 degrees. In Dallas on Friday, highs climbed into the high 100s. And in Austin on Sunday, the temperature climbed up to 109 degrees. From Thursday to Sunday, the Electricity Reliability Council of Texas issued a conservation request every day — asking Texans to lower their energy use as air conditioners blasted.
Texans will get a relative reprieve from the heat over the coming days: Dallas won’t cross back over the triple-digit mark until Saturday, while Houston won’t get hotter than 100 degrees this week. Still, temperatures remain high — a reminder that just because summer break is over in many places, summer weather isn’t, making air conditioning in schools and on buses more critical than ever. —Will Kubzansky
August 22: The Midwest joins the South and Southwest this week in pulling the short straw of weather forecasts. The National Weather Service projects a large heat dome will “persist in at least 22 states until the end of the week,” Axios reports, affecting 143 million Americans. Numerous cities are experiencing heat indexes between 110 and 115 degrees Fahrenheit; Lawrence, Kansas, even reached a “feels-like” temperature of 134 on Sunday.
Not only will the extreme highs endanger lives, the heat waves might threaten “a bumper U.S. harvest that’s key to keeping global inflation in check,” Bloomberg reports. The United States expects to reap its second largest corn harvest on record this year, but the upcoming heat might dry out fields that are already showing signs of being parched.
Over the weekend, relief for the Midwest will come from cooler winds flowing down from Canada, AccuWeather reports. Unfortunately, the welcome breeze might also come along with “bouts of poor air quality” and smoke from Canadian wildfires. —Annie Xia
August 16: With triple-digit highs, the Pacific Northwest has joined the ranks of states breaking heat records this summer. Portland, Oregon, hit 108 degrees Fahrenheit on Monday, a record for the month of August. Seattle, Washington, also set a new daily record on Monday when it reached 96 degrees.
Combined with strong winds and moderate to severe drought levels, high temperatures in the region also mean heightened wildfire risk. Almost 3,000 firefighters are already “battling the seven large fires burning across Oregon and Washington,” CNN reports.
The sweltering temperatures continue a streak of oppressive summers in the Pacific Northwest. Dr. Steven Mitchell, medical director of a Seattle hospital’s emergency department, told The New York Times that “he couldn’t remember treating a single case of severe heat illness or heat stroke” before 2021, when a deadly heat wave struck the region. —Annie Xia
August 9-11: Florida is often synonymous with heat, but the heat index in Tampa Bay climbed up to 112 degrees on Wednesday — flirting with 113, the mark at which an excessive heat warning is issued. The Tampa Bay Times reported that the warning issued Wednesday was possibly the area’s first excessive heat warning ever, with the caveat that records might be faulty.
While the heat has let up slightly, a heat advisory remains in effect from Fort Myers up to Chiefland, and the area has exceeded its electricity demand records twice this week. On Friday, the heat index at Tampa International Airport reached 110 degrees, and values are expected to climb up to 108 on Saturday, according to the National Weather Service. —Will Kubzansky
August 7: In places like New Orleans, the old adage applies: It’s not just the heat, it’s the humidity. The high is set to hover between 100 and 97 through Friday, but the heat index will sit between 116 and 111. Louisiana, like much of the country, is seeing an unusually hot summer: Baton Rouge experienced its warmest month on record in July. All the while, central Mississippi is experiencing highs between the high 90s and low 100s, with heat indices reaching 120 degrees, according to the National Weather Service’s outpost in Jackson.
The heat killed 16 Louisianans in June and July. And given that extreme heat causes the worst impacts for people experiencing poverty and creates particularly devastating effects for Black Americans, it’s worth noting that Mississippi and Louisiana have the two highest poverty rates in the country as well as the highest proportion of Black residents of any two states. —Will Kubzansky
August 2: Iran is shutting down. The New York Times reports that government agencies, banks, schools, soccer leagues are all closed Wednesday and Thursday, allegedly due to the heat, which is expected to reach 104 degrees Fahrenheit in Tehran. In Ahvaz, a southwestern city, the high on Wednesday is a blistering 123 degrees.
Per the Times, some Iranians have expressed doubts about the alleged reason for the shutdown — instead claiming that the country’s electric grid can’t meet demand. All the while, Iran faces extensive water shortages across the country, largely due to mismanagement of its resources. —Will Kubzansky
August 2: A deadly heat wave is striking both sides of the Sea of Japan.
In South Korea, two deaths were reported on Tuesday due to high heat — they were senior citizens working outside — bringing the death toll from the heat wave to 12. With temperatures above 100 degrees Fahrenheit in Yeoju, a city south of Seoul, the country has raised its warning system for heat to the highest level, the first instance since 2019.
And in Japan, a 13-year-old girl and an elderly couple died due to heat-related causes on Friday. Temperatures have climbed above 103 degrees this week in parts of the country, and 32 prefectures are under the government’s “special heatstroke alert,” according to The Washington Post.
Japan is coming off a brutal month of July, which included the longest run of 95 degree temperatures in Tokyo since records began in 1875. Heat waves are especially devastating for Japan, which has one of the world’s oldest populations. —Will Kubzansky
July 28: No American city has been more emblematic of this summer’s relentless heat than Phoenix, where the temperature has climbed above 110 degrees Fahrenheit for 29 consecutive days. That streak looks like it might finally come to a close, with highs ranging from 106 to 109 from Monday to Wednesday next week as the forecast calls for rain over the weekend. But by Thursday, the mercury will climb above 110 yet again.
With the heat showing no signs of truly relenting, Arizona Democrats have proposed a novel solution — calling on President Joe Biden to issue a presidential disaster declaration for extreme heat, unlocking the Federal Emergency Management Agency’s response capabilities. And all the while, more than 30 wildfires are blazing across the state of Arizona. —Will Kubzansky
July 26: For most of the summer, stories about extreme heat in the U.S. have been limited to the South and Southwest. That’s changed in the last few days, as heat is forecast to scorch the Midwest and Northeast this week. On Thursday, New York will see highs in the mid-90s and D.C. up to 99 — both with heat indexes in the mid-100s. In Kansas City, highs will sit in the 100s through Friday and climb back up into the triple digits again on Monday; Indianapolis will reach 99 degrees Friday.
Late July is an appropriate time for heat waves — and this burst does not look like a lengthy one, with the 10-day forecast dipping back into the 80s — but it’s also worth noting that cities like D.C. are less prepared for extreme heat than Miami or Phoenix. D.C. has entered a hot weather emergency, but in New York, some advocates have cautioned that the city is not ready for the challenges ahead. —Will Kubzansky
July 26: Devastating consequences of the climate crisis are playing out in Algeria, Greece, Italy, and Tunisia, as wildfires spread and take dozens of lives — more than 40 in total and 34 in Algeria alone. The wildfires are being driven in part by intense heat, up to 119.7 degrees Fahrenheit in Algeria and 120 degrees in Tunisia. While those temperatures have cooled slightly, they will reach up to 111 degrees in Tunis come Friday and already climbed into the triple digits in Greece on Wednesday. Meanwhile, Greek authorities have evacuated more than 20,000 people from Rhodes, a popular vacation spot. —Will Kubzansky
July 25: The summer has offered a deluge of heat headlines — scrolling through this page is the proof. But zooming out, the context matters: Has this summer’s heat been uniquely driven by climate change? The answer is almost certainly yes, according to a study from researchers at Imperial College London, the Royal Netherlands Meteorological Institute, and the Red Cross Red Crescent Climate Centre.
The flash study is not peer-reviewed — it moved too quickly to go through that process — but it notes that “without human-induced climate change these heat events would … have been extremely rare.” The high temperatures in North America and Europe, it adds, would have been “virtually impossible” without climate change. Heat waves may have still occurred, but the key is the intensity: In the U.S., Europe, and China, climate change accounted for between 1 to 2.5 degrees Celsius (1.8 to 4.5 degrees Fahrenheit) of additional heat. —Will Kubzansky
July 17: Records are falling left and right in the Southwest. At 118 degrees Fahrenheit, Phoenix broke its all time high temperature record on Saturday. The city is also approaching breaking its record for the most 110 degree days in a row. In El Paso, the temperature at the airport has hit 100 degrees for 32 consecutive days, the longest streak ever. And according to The New York Times, the National Weather Service called for 45 record highs across the U.S. last weekend.
And as wildfires burn in Southern California, the heat wave is showing no signs of letting up. Phoenix will see highs in the 110s through Monday, as will Las Vegas. At this point, the heat wave has been classified as another heat dome, and Texas is feeling the brunt of it too, with San Antonio and Austin under excessive heat warnings. The heat wave is most dangerous for vulnerable members of society, especially people who are homeless and seniors — placing an outsized and crucial burden on cooling centers in the Southwest. —Will Kubzansky
July 14: A year after Europe saw 60,000 excess deaths due to heat waves, according to a study published by the scientific journal Nature Medicine, Southern Europe is scorching again. In Greece, the Acropolis closed midday Friday to tourists with high temperatures in Athens expected to reach 104 degrees. Parts of Spain saw temperatures going up to 113 degrees Monday, and another heat wave is expected to arrive Sunday. Italy, in the meantime, is expecting that next week could break the record for the highest temperatures ever recorded on the continent.
Europe has taken a new approach to heat waves — giving them names like hurricanes in an effort to raise awareness about their severity, an idea my colleague Neel Dhanesha wrote about last year. The first round of heat this week was dubbed Cerberus; the second round set to arrive this weekend is named Charon. —Will Kubzansky
Grant Faint/Image Bank via Getty Images
July 12: In a summer full of record-breaking heat, the fact that it’s hot in Death Valley is almost comforting. On Sunday, the national park in the Mojave Desert, known for being the hottest place on Earth, is projected by the National Weather Service to reach 130 degrees Fahrenheit, which would probably tie the record for the world’s highest temperature. The uncertainty stems from some controversy surrounding the record: While the valley was said to have reached temperatures of 134 degrees in 1913, experts have questioned the legitimacy of that reading. That leaves 130 degree days in 2020 and 2021 as the hottest temperatures on record — in Death Valley or anywhere.
While Death Valley’s heat is something of a novelty, it has catastrophic impacts elsewhere. Las Vegas’s high will only be 12 degrees cooler (118 degrees), and temperatures will reach 106 degrees on the same day in San Bernardino. —Will Kubzansky
July 10: After 10 days with high temperatures above 110 degrees, the highs in Phoenix are forecasted to eclipse that mark for at least the next nine days. According to the National Weather Service’s Phoenix office, the record for consecutive 110-degree days is 18; the office is placing the probability that the record gets shattered at 50%. And like Texas’ heat dome earlier this summer, evening temperatures aren’t declining as substantially as they usually do, leaving Arizonans without relief.
In New Mexico, the National Weather Service office out of Albuquerque is describing the week ahead as “near-record heat.” And temperatures in Las Vegas, Nevada, are set to get even more brutal over the course of the week, with the high going from 107 degrees on Monday to a forecasted high of 117 on Sunday. The heat will also lead to brutal temperatures in Death Valley — potentially up to 127 degrees on Sunday — according to the The Washington Post. —Will Kubzansky
July 10: Texas can’t catch a break this summer — and the South is catching yet another heat wave as well. Heat indexes in Dallas, Houston, New Orleans, and Miami are set to reach 107 to 108 degrees this week. Water temperatures around South Florida are well above average, and the chance that rain breaks the heat in the area is limited over the next few days. This year is already the hottest on record in Miami, according to WLRN. —Will Kubzansky
July 7: Phoenix and Tuscon are under excessive heat warnings for at least the next six days. Afternoon highs are projected to reach between 105 and 115 degrees Fahrenheit — Friday will get up to 112 degrees in Phoenix — bringing temperatures above average for early July, according to AZCentral.
It might last well into the month. According to the National Weather System’s warning: “We are still anticipating this current heat wave to continue through next week and likely beyond with it rivaling some of the worst heat waves this area has ever seen.” A big heat wave also brings pressure to the electric grid, particularly in heavily populated areas like Phoenix, as residents crank up their ACs. One study from earlier this year showed that a five-day heat wave and blackout would combine to send more than 50% of the city’s population to the emergency room.
It’s also not just Arizona that will catch the worst of this wave: New Mexico, Las Vegas and Death Valley all have scorching temperatures in store over the next week, The Washington Post notes. —Will Kubzansky
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July 6: Outdoor work came to a halt in Beijing as temperatures reached 104 degrees Thursday in the Chinese capital. A heat wave is gripping parts of China, including the capital and the nearby Henan province. Before 2023, Beijing had experienced temperatures above 104 degrees six times, CNN reported. This year alone, the temperature has eclipsed that mark on five days. In Taiwan, temperatures are set to reach 104 degrees Saturday, according to the country’s Central Weather Bureau. All the while, flooding has also led to devastation in China, causing 15 deaths in Chongqing, Hunan province, and elsewhere. —Will Kubzansky
June 30 - July 5: In the Antelope Valley and Santa Clarita Valley, temperatures reached 105 and 101 degrees respectively Monday, the Los Angeles Times reported. David Gomberg, an NWS forecaster, told the Times that high heat is to be expected in Southern California around now — to some extent, the weather is “routine,” he said.
Still, temperatures climbed rapidly in the Los Angeles area beginning Friday, especially inland and in the desert. And because the rise came so suddenly following a temperate period, it may have posed an unusually high risk to Californians who hadn’t yet acclimated to the season’s hotter temperatures. Extreme heat can also create arid conditions begetting wildfires, though no reports of serious fires in California have emerged following July 4 fireworks displays. —Will Kubzansky
July 5: This year’s Fourth of July was the world’s hottest day on record, and that record will likely be broken again this summer. In Texas, the heat was nothing new: The last day El Paso recorded a high temperature under 100 degrees was June 15. Since then, every day has gotten up to the triple digits — with the heat reaching 108 degrees on June 26 and 27.
In other words, it’s still really, really hot in Texas as a heat dome remains firmly planted over the state. Some parts of Texas have seen a handful of cooler days — July 4 wasn’t quite as brutal in Houston, for instance, and San Antonio’s temperatures have largely fallen back into the ‘90s. But the southern part of the state is in what the San Antonio Express-News describes as a “rut”: Heat is giving way to marginally cooler temperatures but the weather is expected to get hotter and more humid again.
For older people or people who work outdoors, the sustained heat has proven especially deadly. The vast majority of Texas’s prisoners, meanwhile, are without air conditioning. —Will Kubzansky
The North Atlantic Ocean is in the middle of a startling heat wave that could have far-reaching repercussions.
The weeks-long marine heat wave broke records for the months of May and is expected to do the same in June. Sea surface temperatures around the U.K. and northern Europe are an astonishing 9 degrees Fahrenheit above average in places, The Washington Post reports.
“Totally unprecedented,” Richard Unsworth, a biosciences professor at the U.K.’s Swansea University, told CNN. It’s “way beyond the worst-case predictions for the changing climate of the region.” Scientists say the warming oceans could have significant consequences, from harming marine life to decreasing the sea’s capacity to absorb pollution.
Above-average heat has also hit the U.K. Temperatures are expected to hit 89 degrees Fahrenheit in southeast England over the weekend.
As a flotilla in the Atlantic searched for the missing Titan submersible, the prominent environmental writer Bill McKibben tweeted, “The truly terrifying news this week is not what happened deep beneath the sea, it’s what’s going on at the surface.” —Annie Xia
June 22: Texans will only get a brief reprieve from the most extreme highs of their heat wave before temperatures pick back up early next week. Notably, temperatures aren’t falling considerably at night, making the heat even more dangerous. North Texas will see the mercury rise up to 104 degrees through Thursday, with the small caveat that humidity will decline into a more comfortable range as the week goes on. In parts of Southwest Texas, the heat won’t let up at all: the high temperatures in Del Rio will hover between 107 and 110 through next Wednesday.
The Electric Reliability Council of Texas issued its first voluntary conservation notice of the heat wave this past Tuesday. While the utility was able to meet demand, it requested that all Texans, especially government agencies, reduce their electricity use.
Mexico is similarly seeing scorching temperatures, which have led to eight deaths already. And high heat in the Rio Grande Valley means that migrants who traverse the border in Southwest Texas could be left exposed to the same high heat, which can have deadly consequences. —Will Kubzansky
Week of June 19: Temperatures in the northern Indian states of Uttar Pradesh and Bihar, two of the most populous in the country, reached as high as 115 degrees Fahrenheit (46 degrees Celsius), CNN reports. The extreme heat triggered power cuts, leaving people without running water, fans, or air conditioners.
The Associated Press reports nearly 170 people had died as of June 20, overwhelming hospitals, morgues, and crematoria — although state officials dispute the connection to the heat wave. Nearly half of the deaths came from a single district, Ballia, in Uttar Pradesh; officials say they have opened an investigation into the cause, which they say could be linked to contaminated water. Members of opposition parties blame the state government and its chief minister, Yogi Adityanath, for not investing enough in medical facilities or warning residents about the heat wave ahead of time. —Neel Dhanesha
June 19: The numbers from Texas’ heat wave are already striking: Dallas tied a humidity record on Thursday, and tens of millions of Texans woke up Friday to heat advisories or warnings. Temperatures will approach — and possibly break — records in Austin early next week, with highs between 104 and 106 through Wednesday. In the area, the heat indices will be highest over the Rio Grande plains and coastal plains, according to the National Weather Service’s Austin/San Antonio office.
Houston, in the meantime, saw its first excessive heat warning since 2016, with heat indices potentially breaking 115 degrees Friday and Saturday. Texas’ grid has held up (so far) — though the Electric Reliability Council of Texas has projected that next week will shatter the record levels of electricity demand that were just set this week, thanks to the number of air conditioners expected to be on full blast. —Will Kubzansky
June 14: Triple-digit heat has arrived early in Texas. Large parts of central and southeast Texas saw the heat index climb into the 100s Wednesday, topping out in McAllen at a searing 118. The heat wave is expected to spread and last through the week, hitting San Antonio, Dallas, Houston, and Austin, where it will feel like 112 degrees Thursday.
But while meteorologists watch for record heat and humidity, others will keep their eye on the state’s isolated electricity grid. Its operators, the Electric Reliability Council of Texas, warned of record-breaking electricity use Friday, an ominous signal for a state that has struggled with deadly blackouts in recent years. But this is just Texas’s first test of the summer: The grid operators noted that the record-breaking demand will likely be surpassed later in the summer. —Will Kubzansky
June 7-11: As skies over New York and Washington, D.C., turned orange from wildfire smoke, Puerto Rico and nearby Caribbean nations sweltered under a heat dome. The Heat Index, which takes into account both heat and humidity, went as high as 125 degrees in parts of Puerto Rico — a number that Jeff Berardelli, chief meteorologist at Tampa Bay’s WFLA-TV, said was astonishing. Temperature records broke across the island.
The Puerto Rican power grid still hasn’t recovered after Hurricane Maria hit the island in 2017, and over 100,000 Puerto Ricans reportedly lost power (though, as Pearl Marvell pointed out in Yale Climate Connections, the exact number cannot be verified because the island’s power company asked PowerOutage.us, which tracks outages, to stop collecting data on Puerto Rico until it can “replace their technology and provide more accurate data”). As I wrote in May, the combination of extreme heat and blackouts has the potential to be incredibly deadly, though no deaths were reported from this heat dome as of publication. —Neel Dhanesha
June 5: Large parts of China have seen record-breaking heat over the past month, one year after the worst heat wave and drought in decades hit the country. This year, Yunnan and Sichuan provinces saw temperatures exceed 40° C (104° F); according to CNN, heat in some parts of the country was so bad that pigs and rabbits died on farms and carp being raised in rice fields "burned to death" as water temperatures rose. Henan province had the opposite problem; extreme rain flooded wheat fields there, ruining crops in the country's largest wheat-growing region.
Meanwhile, a prolonged heat wave in Vietnam is keeping temperatures between 26 and 38 degrees Celsius (78.8 and 100.4° F), prompting officials to turn off street lights and ask citizens to cut down on their power consumption to avoid blackouts. VNExpress reports that many Vietnamese citizens who can't afford air conditioners are seeking respite in public spaces like libraries, buses, department stores, and cafes. —Neel Dhanesha
May 12: Some 12 million people in Washington and Oregon were under a heat advisory for four days starting May 12 as temperatures in the region topped out at more than 20 degrees above the normal high at that time of year, which should have been in the mid-60s.
"It’s harder for people in the Pacific Northwest to cool down when it’s 90 out than for people in, say, Phoenix or Las Vegas — cities that were constructed with heat in mind," wrote Heatmap Founding Staff Writer and Washington native Jeva Lange in her larger story about this heat wave. "Seattle, for example, is the second-least-air-conditioned metro area in the country (behind only “the coldest winter I ever spent was a summer in” San Francisco). Just over half of the homes in the area have a/c, and many of them are new buildings." —Neel Dhanesha and Jeva Lange
April: A large, deadly heat wave baked much of Asia for two weeks in April, Axios reported. Parts of India saw temperatures beyond 40°C (104°F), while temperatures in Thailand reached their highest levels ever, breaking past 45°C (113°F) for the first time in that country's history. Thirteen people died in Mumbai, and hundreds of people across the Asian continent were hospitalized. —Neel Dhanesha
This article was first published on June 5, 2023. It was last updated on September 6, 2023, at 3:59 PM ET.
More about heat and how the world is coping:
1. The Deadly Mystery of Indoor Heat
2. Don’t Be Too Chill About Your Air Conditioning Dependency
3. America Is Depending on Renewables This Summer
4. Dermatologists Have Bad News to Share About Climate Change
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On the cobalt conundrum, Madagascar’s mining mess, and Antarctica’s ‘Greenlandification’
Current conditions: Severe storms are sweeping through the central Great Plains states this weekend, whipping up winds of up to 75 miles per hour • Freezing temperatures are settling over Kazakhstan and Mongolia • A record heat wave in Australia is raising temperatures as high as 113 degrees Fahrenheit.
Nearly two dozen states signed onto two lawsuits Thursday to stop the Trump administration from ending the $7 billion grant program that funded solar panels in low-income communities. The first complaint, filed Wednesday, seeks monetary damages over the Environmental Protection Agency’s bid to eliminate the so-called Solar for All program. A second lawsuit, filed Thursday, seeks to reinstate the program. Arizona Attorney General Kris Mayes told Reuters the cancellation affected 900,000 low-income households nationwide, including some 11,000 in Arizona that the state expected to see a 20% spike in bills after losing access to the $156 million in funding from Solar for All. California would lose $250 million in funding. The litigation comes days after Harris County, which encompasses most of Houston, Texas, filed suit against the EPA over its own loss of $250 million due to the program’s termination. Earlier this month, a coalition of solar energy companies, labor unions, nonprofit groups, and homeowners also sued the EPA over the cancellation.
It remains to be seen whether other countries are willing to balk at the Trump administration’s push to gut key carbon-cutting policies. But at least in theory, later today, the drafting group for the International Maritime Organization, the United Nations agency overseeing global shipping, will vote on an emissions pricing mechanism meant to slash greenhouse gas output from an industry that still relies on some of the most heavily polluting fuels. The scheduled vote comes a day after President Donald Trump pressed the international body to reject the proposal, calling it “the Global Green New Scam Tax on Shipping” and vowing to ignore the rules.
The maritime shipping industry accounts for about 3% of global emissions. But the impact of shipping fuels is substantial. As Heatmap’s Robinson Meyer wrote in December, a study found that, when the IMO began enforcing rules to remove a toxic pollutant, sulfur dioxide from shipping fuels, the planet’s temperatures spiked. That’s because, in addition to inflaming the heart and lungs, triggering asthma attacks, and causing acid rain, sulfur dioxide can also reflect heat back into space, artificially cooling the Earth. When that fuel went away, the warming effects of all the carbon in the atmosphere became more apparent.
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A child worker at a cobalt mine in the Democratic Republic of the Congo. Michel Lunanga/Getty Images
The Department of Defense canceled a tender to buy cobalt, in what the trade publication Mining.com called “a fresh sign of the challenges facing Western countries trying to bolster domestic supplies of the battery metal.” In mid-August, the Defense Logistics Agency first sought offers for up to 7,500 tons of the bluish metal used in batteries and alloys for jet engines over the next five years, in a contract worth as much as $500 million. It was, according to Bloomberg, the U.S. government’s first attempt to acquire the metal since 1990. When no deals came in by the original due date of August 29, the offer was extended to October 15. But a notice published on a government website Wednesday indicated that the offer had been pulled. The move marks an apparent setback for the Pentagon’s effort to stockpile critical minerals, as I reported in this newsletter earlier this week.
While the funding doesn’t produce raw cobalt from mining, as I reported for Heatmap last month, the DLA has backed an Ohio-based startup called Xerion that’s commercializing a novel approach to processing both that metal and gallium, another mineral over which China has tightened export controls recently. It’s not alone. As Heatmap’s Katie Brigham wrote last month, “everybody wants to invest in critical mineral startups.”
The British rare earths processor Pensana has canceled plans for a refinery in East Yorkshire, England, in favor of investing in an American project instead. The company spent the past seven years developing a $268 million rare earths mine in Angola. One of the largest of its kind in the world, the project is scheduled to begin delivering raw materials in 2027. To turn that ore into industrial-grade materials, Pensana had planned to build a processing facility at the Saltend Chemicals Plant near Hull, England, that would have turned the metals into powerful magnets. The project won about $6.7 million in support from the British government. But Pensana’s founder and chairman, Paul Atherley, told the BBC that was “nowhere near enough.” He compared the deal to the Trump administration’s direct investment of billions of dollars into MP Materials, the country’s only rare earths mine. Pensana instead announced plans to work with the U.S. refiner ReElement to develop a domestic American supply chain, and plans to list its shares on the Nasdaq. As I wrote in Tuesday morning’s newsletter, the world’s top metals trader warned this week that the West’s mineral weakness is a lack of refining capacity, not mining. “Mining is not critical,” Trafigura CEO Richard Holtum said in London on Monday, according to Mining Journal. “True supply chain security comes from processing investment, not just extraction.”
But even the increased supply of ore from overseas projects could be in jeopardy. I have a scoop this morning in Heatmap that highlights the geopolitical challenges U.S. mining projects face overseas. On Sunday, following weeks of youth-led protests over electricity and water outages, Madagascar’s military overthrew its government in a coup. Now the new self-declared leaders have pulled support for Denver-based mining developer Energy Fuels’ plans for a giant mine that would produce rare earths, uranium, and other metals. The so-called Toliara mine, worth an estimated $2 billion, had won approval from the previous government last winter. But a consultant on the ground in Madagascar’s capital of Antananarivo told me the new leaders had “announced the definitive cancellation” of what was previously described as the future “crown jewel” of an economy where 75% of people live on less than $3 per day and less than 40% of the population has access to electricity.
As recently as the 1990s, the Greenland Ice Sheet and the Arctic were melting at a measurable pace thanks to global warming, but Antarctica’s ice cap seemed securely frozen. But, as Inside Climate News reported Thursday, “not anymore.” New satellite data and field observations show the only unpopulated continent is thawing at an alarming rate, leading to what some scientists are now calling the “Greenlandification” of Antarctica, turning it into an environment that’s melting at a rate closer to the Arctic.
There’s little question as to what is causing the meltdown. More than 100 countries now experience at least 10 more “hot days” per year than a decade ago, when the Paris climate accord was first drafted, according to new data analysis from the research groups Climate Central and World Weather Attribution published Thursday in the Financial Times. In 10 countries, the warming over the past decade added roughly a month of additional “hot days.”
The good climate news, reported by Bloomberg: the Bay Area startup Rondo Energy has turned on the world’s largest industrial heat battery, a giant cubic structure that heats clay bricks with electricity from a 20-megawatt solar array to generate steam.
The bad climate news? That steam is used to force more oil out of the ground as part of Holmes Western Oil Corp.’s enhanced oil recovery system.
The mitigating factors to consider: The battery replaced a natural gas-fired boiler at the Kern County, California, facility. And proponents of enhanced oil recovery say the approach meets lasting demand for petroleum by extracting more fuel from existing wells rather than encouraging new drilling.
Denver-based Energy Fuels was poised to move forward on the $2 billion project before the country's leadership upheaval.
As the Trump administration looks abroad for critical minerals deals, the drama threatening a major American mining megaproject in Madagascar may offer a surprising cautionary tale of how growing global instability can thwart Washington’s plans to rewire metal supply chains away from China.
Just days after the African nation’s military toppled the government in a coup following weeks of protests, the country’s new self-declared leaders have canceled Denver-based Energy Fuels’ mine, Heatmap has learned.
The so-called Toliara mine was supposed to be the “crown jewel” of one of the world’s least developed economies, a megaproject designed to patch Madagascar into a new global supply chain meant to reroute trade in metals needed for everything from state-of-the-art weapons to electric vehicle batteries away from China.
Last December, Energy Fuels, the Denver-based rare earths and uranium miner, won approval from the Malagasy government to move forward on its Toliara Project, a critical minerals mine with a value analysts estimated at $2 billion. But on Thursday morning, the new president of Madagascar’s National Assembly “announced the definitive cancellation” of the project, Luke Freeman, a geopolitical consultant with 25 years of experience in Madagascar, told me by email.
Kim Casey, Energy Fuels’ head of investor relations, dismissed the legitimacy of the coup leaders’ decision in an emailed statement. The company is “watching the events in Madagascar closely, and like the rest of the world we are waiting to see how things unfold,” the statement said.
“At this time, governing bodies and areas of responsibility in Madagascar remain unclear,” she went on. “Any statements made by any individual politicians or others amid this crisis have no legal effect, nor should they be taken to represent official Madagascar government policy or the opinions of the majority of local communities.”
Still, Casey left open the possibility that the mine could be postponed. If the coup “results in any delays in our development plans for the Toliara Project,” she said, “Energy Fuels has multiple projects around the world which are advancing at the same time.” Investors seemed less confident. The company’s stock, which had soared by nearly 500% over the past six months, plunged 8% on Wednesday, and another 13% on Thursday afternoon.
Even if the project goes under, it’s unlikely to impact U.S. mineral supplies, Neha Mukherjee, a rare earths analyst the London-based battery-metals consultancy Benchmark Mineral Intelligence, told me. The mine did not have any public offtakers yet, but Energy Fuels announced plans last year to send uranium ore from the project to the White Mesa Mill in Utah for processing.
“Toliara remains at a very early stage and is still working towards a final investment decision, so immediate on-ground impacts are likely to be limited,” she told me in an email. But she warned that “investors and potential offtakers” may “take a more cautious approach until there’s greater clarity on the political environment.”
It is no accident that, despite its unique culture that blends influences from Africa and Asia, Madagascar is a place known to many Americans primarily as the setting of a series of fictional movies about cartoon animals that aren’t even native to the island nation off southeast Africa. More than 75% of the island's 32 million people live on less than $3 per day, and poverty levels have barely declined over the past decade. Less than 40% of its people have access to electricity.
On Sunday, sweeping month-long youth protests over power and water outages, dubbed a “Generation Z revolution,” evolved into a more traditional type of insurrection when an elite arm of Madagascar’s military overthrew the government in what the African Union denounced as a coup.
The upheaval highlights the challenges ahead for U.S. companies as Washington attempts to reduce its dependency on China, which controls most of the world’s mining and processing of key metals such as rare earths and lithium.
The Biden administration sought to get around the issue by making minerals extracted from countries with which the U.S. had free trade agreements eligible for the Inflation Reduction Act’s most generous electric vehicle tax credits. That strategy put a particular focus on allies with vast mining industries, including Australia, Chile, and Canada.
While President Donald Trump has phased out the tax credits, his administration has tried to broker deals across the world with developing countries whose resources China has largely monopolized in recent years. In May, Trump signed a deal with Ukraine to secure revenues from its as-yet largely untapped minerals once the war with Russia ends — a precondition for his administration’s continued assistance in the effort to repel the Kremlin’s invasion. A month later, Trump negotiated a peace deal between the Democratic Republic of the Congo and Rwanda, pausing a bloody conflict and setting the stage for the U.S. to secure new contracts for raw materials in the war-torn but resource-rich part of central Africa.
The administration’s ongoing pressure on Denmark to cede its autonomous territory of Greenland to the U.S. is widely considered a play for the Arctic island’s minerals. Earlier this month, Reuters reported that the administration is considering buying a stake in Critical Metals, a company prospecting for rare earths in Greenland.
Washington’s appetite for critical minerals could even redraw world maps in the next few years.
Under the terms of a peace agreement that ended a decade-long civil war in the 1980s, Bougainville, a breakaway island off Papua New Guinea, is slated to hold a referendum in 2027 over whether to become an independent nation. Polls suggest the overwhelming majority of voters will support secession. In the U.S., a former investment banker turned novelist named John D. Kuhns has taken up the cause of Bougainville’s independence, advocating that Washington support the would-be republic whose biggest economic asset is a shuttered Rio Tinto copper mine that the autonomous government wants to reopen — potentially with U.S. help.
Trump is also weighing recognizing the breakaway region of Somalia’s independence as Somaliland, which has functioned as a sovereign nation with an internationally praised democracy for more than three decades, in a bid to secure deals to mine its mineral riches. Senator Ted Cruz, the Texas Republican, called on Trump to grant Somaliland recognition as recently as August.
But the most promising potential region for critical minerals may be the one sandwiched between America’s two greatest rivals. In September 2013, then-President Joe Biden huddled with the leaders of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan on the sidelines of the United Nations General Assembly in New York. From that summit came the C5+1, a partnership between the U.S. and the five Central Asian nations to work on critical minerals. Weeks after Trump returned to office, Secretary of State Marco Rubio affirmed the Trump administration’s support for the partnership in a call with his Uzbek counterpart.
After Australia and Canada, the Central Asian republics represent the “lowest-hanging fruit” for developing a U.S. critical mineral supply chain, said Pini Althaus, a veteran mining executive making deals in the region. The countries are relatively stable, have recently enacted business reforms meant to invite U.S. companies to work there, and — as a means of safeguarding their independence from Moscow and Beijing — are eager to make deals with the U.S., he said.
“We are at least a couple of decades away from having a domestic supply chain in the United States that can meet all of our critical mineral needs,” Althaus told me. “Practically speaking, we don’t have enough of these materials in the U.S., so we must partner with allied countries. Central Asia offers a lot of these opportunities.”
These days, however, political instability isn’t unique to developing countries. The Trump administration is supposed to host a meeting of the C5+1 in Washington as early as next month, Althaus said — that is, if the ongoing government shutdown is resolved.
In a press conference about the newly recast program’s first loan guarantee, Energy Secretary Chris Wright teased his project finance philosophy.
Energy Secretary Chris Wright on Thursday announced a $1.6 billion loan guarantee for American Electric Power to replace 5,000 miles of transmission lines with more advanced wires that can carry more electricity. He also hinted at his vision for how the Trump administration could recast the role of the department's Loan Programs Office in the years to come.
The LPO actually announced that it had finalized an agreement, conditionally made in January under the Biden administration, to back AEP’s plan. The loan guarantee will enable AEP to secure lower-cost financing for the project, for an eventual estimated saving to energy consumers of $275 million over the lifetime of the loan.
“These are the kind of projects where we’re going to partner with businesses to make our energy system more efficient, more reliable, ultimately lower cost,” Wright said on a call with reporters.
And yet in the past few months, the department has also canceled loan guarantees and grants for other transmission projects that were expected to provide those same benefits — including the Grain Belt Express, an 800-mile line set to bring low-cost wind power from Kansas to the Chicago metropolitan area in Illinois.
“We don’t care about authorship,” Wright told reporters, acknowledging that the AEP loan was conditionally approved by the Biden administration. “Not all of them were nonsense. The ones that are in the interest of the American taxpayers, in the interest of the American ratepayers, and there’s a helpful role for government capital — we’re happy to support those.”
When asked specifically why AEP’s proposal met his criteria while the Grain Belt Express didn’t, Wright first made an argument about cost. “I have nothing against the Grain Belt Express,” he said. “I suspect it’ll still be developed. But it’s far more expensive on a per mile basis since it’s a brand new transmission line.”
His subsequent comments, however, hinted at a more significant shift in approach. He went on to argue that the project came with an unacceptable amount of risk since the developers didn’t have buyers yet for the power coming down the line. It was trying to “close on arbitrage,” he said, by buying up cheap wind power that was stranded in Kansas and bringing it to a larger market. “It’s a more commercial enterprise,” he said. “That’s done with private entrepreneurs and private capital.”
It’s important to note that the Grain Belt Express loan guarantee would have been issued under an innovation-focused program within the Loan Programs Office that was specifically geared toward higher risk projects that banks won’t otherwise touch. The AEP project is part of a different program focused on more mature technologies, with a goal of reducing the cost of major utility infrastructure upgrades to ratepayers.
When I floated Wright’s comments by Jigar Shah, the former head of the Loan Programs Office under the Biden administration, he was flummoxed. “It’s nonsensical,” he said. To Shah, taking Wright’s risk aversion to its logical conclusion would mean, for instance, that the office should not fund any nuclear energy projects. “If this becomes a new standard, that means nuclear is dead in the United States,” he said.
AEP is the first developer to secure a loan guarantee under the Energy Dominance Financing Program, Congress’ new name a Biden-era program within LPO that offered loan guarantees to utilities to “retool, repower, repurpose, or replace energy infrastructure.” Initially called the Energy Infrastructure Reinvestment Financing Program and created by the Inflation Reduction Act, it focused on projects with climate benefits, like making efficiency upgrades to power plants or installing renewables on the site of a former coal plant.
In the Biden administration’s view, AEP’s project would “contribute to emissions reductions by supporting existing and new clean generation by expanding transmission capacity in the regions in which they operate.”
Trump’s One Big Beautiful Bill Act rebranded the program and removed any requirements that projects reduce emissions. On Thursday’s call, Wright seemed to imply that it wasn’t just the Biden-era loan program that had been renamed. “The Loan Program Office is being rechristened the Energy Dominant Financing — it is the rechristening of the same department,” he said in response to a question about the office’s remaining loan authority. The Department of Energy did not respond to my request for clarification.
None of that means that the potential emissions benefits from AEP’s project won’t materialize. Limited transmission capacity is one of the biggest obstacles for bringing new wind and solar power online, and reconductoring could also reduce line losses, making the overall grid more efficient.
The transmission project — which includes plans to rebuild some power lines and reconductor others — will ultimately increase capacity by more than 100%, a spokesperson for AEP told me. The first phase will involve upgrades to about 100 miles of wires across Ohio and Oklahoma, while future phases will tackle lines in Indiana, Michigan, and West Virginia, with the intent of meeting growing demand from data centers and manufacturing development, according to a press release.
When reporters asked Wright about the other conditional loan guarantees the Biden administration had issued under the Energy Infrastructure Reinvestment program that are still pending, the secretary stressed that he was looking for applicants that had identified a clear set of projects they would implement. “Many were done in a hurry, without really even having the projects that the loans would be associated with identified. You can end up with a grab bag of projects without a lot of say for where the money went,” he said.
Wright accused the Biden administration of failing to ask applicants to detail the impact the projects would have on taxpayers and ratepayers — a key question his colleagues are now asking.
Shah disagreed with that portrayal. The whole point of the program was to reduce interest rates for utilities and require them to pass on the benefit to ratepayers. All of the projects awarded conditional commitments met that bar, he said.
He warned that if the Trump administration didn’t honor the remaining conditional commitments to utilities under the program — all 10 of them — it risked losing the trust of any new companies it attempts to make similar deals with.
“Most of the nuclear projects that they’re looking to chase are not going to get closed until 2028. And so what signal are they sending? That projects that get approved in the last year of an administration are not going to be honored in the next administration?”