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Last summer was the hottest in two millennia. We won’t get any relief this year.
An overwhelming majority of Americans will experience above-average heat this summer, and temperatures in more than half of the contiguous United States are expected to top the historical average by at least 2 degrees Fahrenheit, according to AccuWeather. New York is expected to endure twice as many 90-plus-degree days as last year; Boston could experience up to four times as many.
Americans got a taste of what’s to come this week, with a blistering heat wave that began in the Southwest and has scorched the East Coast for the past three days. That heat may have come early based on the historical averages, but considering more recent trends, it’s right on track.
“The biggest changes that we have seen in recent decades is that the heat wave season has been expanding, starting earlier in the late spring and ending later into early fall, on average,” AccuWeather Senior Meteorologist Brett Anderson told Heatmap.
The northern Rockies, Great Lakes, and the Northeast are areas of particular concern, Paul Pastelok, AccuWeather’s Lead Long-Range Forecaster, told Heatmap. Those regions will likely experience less precipitation and more intense heat this summer compared to their historical average. “The Northern Plains and Upper Midwest are tricky,” Pastelok said. “Right now, this area is getting rain, but this could cut off by the very end of June into July, and turn around to dryness with the heat following.”
While temperatures will most likely peak in the interior Southwest — Nevada, Arizona, and New Mexico — by early July, the region can expect temperatures between 112 and 118 degrees until then. Monsoon season, which brings warm winds and rainfall inland, will likely arrive in late July instead of the usual late June, Pastelok said. Peak heat could come much later — anytime between July and September — for those in the Great Lakes, the Ohio Valley, and the Northeast.
The biggest “warm anomalies” are expected in the Southwest and central Rockies, the Great Lakes, the Ohio Valley and the Northeast, according Tom Kines, a senior meteorologist at AccuWeather. “We are looking at anomalies for the entire summer of +4 degrees (F) which is pretty significant over a 3 month period,” Kines wrote in an email to Heatmap.
Heat won’t be the only extreme weather this season. Drought could be severe, particularly in the Southwest — including parts of Texas, Oklahoma, and Kansas, where rainfall could come in below 50% of the historical average. That dry spell could intensify over the northern Plains, Great Lakes, and the Northeast later in the summer. The Gulf Coast, meanwhile, can anticipate a staggering 22 to 36 inches of rain this season — compared to its usual 15 to 24 inches — which will likely make flooding an issue.
After a wetter winter, meteorologists anticipated a slow start to the wildfire season in California and the Southwest. In fact, the number of wildfires this year is expected to come in below average: AccuWeather meteorologists predict 35,000 to 50,000 wildfires this year, compared to a historical average of about 69,000. Yet the fires in California also seem to have picked up speed a little earlier than normal. Last week saw more than two dozen fires in the state, perhaps heralding increased fire activity to come.
So how will we deal with all this? Northern cities, especially, tend to be less equipped to deal with extreme summer heat. In Boston, temperatures reached a record-breaking 98 degrees on Wednesday, a day after Mayor Michelle Wu declared a heat emergency. The city opened cooling centers this week in an attempt to minimize the number of heat-related medical emergencies.
Boston Green New Deal Director Oliver Sellers-Garcia told Heatmap that the city is bringing more government agencies into the heat management effort. The Fire and Parks departments plan to set up misting stations, and the city will continue to provide extra pop-up cooling centers in coordination with Boston’s Centers for Youth and Families. Those strategies, Sellers-Garcia said, “can have an instant benefit for someone, whether it’s just a super hot day and they have to get to work or it’s a declared heat wave.”
In Florida, people are used to chronic heat, Miami-Dade County’s Chief Heat Officer Jane Gilbert told Heatmap. Last year the county had 42 heat advisories (which happens when the thermometer reaches 105) and 70 warnings (110), Gilbert said, and this season is already proving more intense: May was the warmest ever on record in the state. To protect residents, the county has established a comprehensive public awareness campaign that targets those most affected by the heat, including outdoor workers, children, pregnant women, the elderly, and people with chronic illnesses. It also runs more than 30 cooling centers.
According to Gilbert, the goal is to educate people about the extent of heat impacts so they can make better choices — drink more water, find shade, limit physical activity — and protect their health. “We haven’t fully appreciated, historically as a community, how it impacts our lives,” she said.
Here’s what’s happened so far ...
June 24: On Juneteenth, over 82 million Americans were under active National Weather Service extreme heat alerts — but, due to the national holiday, many publicly operated cooling centers were closed. While Boston had opened 14 new facilities in partnership with the Centers for Youth and Families, for instance, none of them stayed open Wednesday.
The same thing happened in New York, where more than 200 cooling centers were closed for the holiday, most of them libraries. While other heat preparedness measures were still in place — Gov. Kathy Hochul announced free admission for state parks — residents counting on a facility near home had to change plans last minute. On Sunday, New York turned 45 public schools into cooling centers, this time because the public libraries were closed due to budget cuts.
In Chicago, only one cooling center was open during the holiday. The lack of cooling spaces available sparked action from homelessness advocates, who are urging the city to offer more cooling centers that are open 24/7 and also to make those facilities available when the heat index is above 80 degrees Fahrenheit.
Because cooling centers are often multi-purpose spaces, data on their usage is limited. In Boston, 245 people visited cooling centers from June 18 to 20, the mayor’s office told me. New York City’s Department of Emergency Management could only say that six people visited four of the schools open Sunday.
June 21: Communities from Kansas to Maine experienced record-breaking temperatures, with heat indices above 100 degrees Fahrenheit in some places. Cities including Philadelphia, Cleveland, and Burlington, Vermont opened cooling centers, and Boston and New York activated heat emergency plans. Schools in Buffalo, New York moved to half-day schedules for the week in response to temperature advisories.
The heat wave was expected to hold into the weekend, increasing the risk of emergencies. But ensuring that at-risk residents are aware of public services and heat mitigation strategies is often more difficult than simply providing amenities like cooling centers and air conditioners, Benjamin Zaitchik, a professor of climate dynamics at Johns Hopkins University, told Heatmap. “Preventing heat deaths — in principle, at least — is easy,” Zaitchik said. “It just requires good planning, good communication, good networks.”
The same heatwave afflicted much of the Southwestern United States the week before. Temperatures in Phoenix and Las Vegas exceeded 110 degrees, breaking records and prompting cities to issue heat advisories covering tens of millions of people. At a Trump rally in Las Vegas, 24 people received treatment for heat-related complications and six were hospitalized, The Guardianreported.
June 14-19:More than 1,000 people died during the sacred Muslim pilgrimage known as the hajj as extreme heat gripped Saudi Arabia in mid-June. In Mecca, where temperatures exceed 120 degrees Fahrenheit, worshippers gripped umbrellas and water bottles to combat the heat. A study from 2019 predicted that hajj conditions would exceed an “extreme danger heat threshold” more frequently in the coming decades, especially when the pilgrimage — which is scheduled according to the lunar calendar — coincides with the warmer months of the year.
The death toll was about five times higher than last year, according to CNN.
June 10: Passengers on a Qatar Airways flight passed out from heat as their plane sat on the tarmac at Athens International Airport. Flight 204, which was delayed for three hours with passengers stuck inside, experienced a malfunction in its air conditioning. Two days later, authorities shut down the Acropolis for five hours due to the 102 degree weather, which marked Greece’s earliest heat wave on record. Many schools were also closed for the day, and several air-conditioned spaces were opened to the public. Greece’s Health Ministry advised older people and those with chronic illnesses to stay indoors.
The intense weather continued throughout the weekend, and at least five tourists were reported to have died due to extreme heat.
Other parts of Southern Europe, such as Cyprus and Turk, have also suffered through heat waves this year. During the second week of June, temperatures in Cyprus exceeded 104 degrees every day and classes ended early. On June 14, some areas experienced their hottest June day ever, reaching 113 degrees. That same week, Turkey also battled record temperatures — they were 8 to 12 degrees higher than the average for the season.
May and June: Both Mexico and India faced extreme temperatures during national elections.
Record-breaking heat waves have scorched Mexico since late March, causing blackouts, wildfires, heat strokes, and animal deaths. On May 25, Mexico City set a new heat record, with the temperature there surpassing 94.4 degrees, while other cities in the country registered even higher temperatures — well above 115 degrees. As of June 12, at least 125 deaths had been attributed to the heat, which has been made worse by an intense drought linked to El Niño. With reservoirs at less than 27% capacity, millions could run out of water by the end of this month.
World Weather Attribution, a research group that analyzes the degree to which climate change is causing extreme weather events, estimated that global warming has made extreme temperatures in the region 35 times more likely. “These trends will continue with future warming and events like the one observed in 2024 will be very common” in a world where average temperatures are 2 degrees Celsius higher than pre-industrial levels, the group stated in a release.
Despite sweltering conditions, about 100 million voters elected Claudia Sheinbaum, Mexico’s first female president, on June 2. In her victory speech, Sheinbaum, a climate scientist with a focus on energy engineering, said she will work to maintain the country’s energy sovereignty. While Sheinbaum has vouched to expand the country’s renewable energy, she has also been criticized for her support of Pemex, the state-owned oil company.
Two days later, on June 4, India re-elected Prime Minister Narendra Modi for a third term during the country’s longest-ever heatwave. By the time the weeks-long voting process wrapped, extreme heat had killed more than 100 people. In Uttar Pradesh, at least 33 poll workers died in a single day, CNN reported. In response, local governments have imposed measures to prevent water waste and protect construction workers. Yet, according to analysis by the Centre for Policy Research found in 2023, most of India’s heatwave policies are underfunded and fail to target the country’s most vulnerable groups.
More extreme weather hammered Mexico beginning June 20 as tropical storm Alberto brought torrential rain and flooding to the country’s east. AccuWeather meteorologists said the storm is just the start of a predicted intense hurricane season in the area. Most of India is still under heatwave alerts, but the weather is set to improve in the next few days as the monsoon finally advances after a week-long delay.
May: Scarce rainfall and soaring heat have led to drought conditions that are threatening China’s food production and water supply. The provinces of Shandong and Henan — crucial to the country’s wheat production — are some of the most affected, and the State Flood Control and Drought Relief Headquarters has dispatched two disaster relief guidance teams. New technology, such as multi-functional seeders, and multiple reservoirs have been deployed to ameliorate conditions.
Also on Wednesday, the China Meteorological Administration reported that several regional weather stations recorded the highest temperatures ever in mid-June. Conditions are expected to worsen, as some Chinese provinces are expected to reach 111 degrees this week.
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The Loan Programs Office is good for more than just nuclear funding.
That China has a whip hand over the rare earths mining and refining industry is one of the few things Washington can agree on.
That’s why Alex Jacquez, who worked on industrial policy for Joe Biden’s National Economic Council, found it “astounding”when he read in the Washington Post this week that the White House was trying to figure out on the fly what to do about China restricting exports of rare earth metals in response to President Trump’s massive tariffs on the country’s imports.
Rare earth metals have a wide variety of applications, including for magnets in medical technology, defense, and energy productssuch as wind turbines and electric motors.
Jacquez told me there has been “years of work, including by the first Trump administration, that has pointed to this exact case as the worst-case scenario that could happen in an escalation with China.” It stands to reason, then, that experienced policymakers in the Trump administration might have been mindful of forestalling this when developing their tariff plan. But apparently not.
“The lines of attack here are numerous,” Jacquez said. “The fact that the National Economic Council and others are apparently just thinking about this for the first time is pretty shocking.”
And that’s not the only thing the Trump administration is doing that could hamper American access to rare earths and critical minerals.
Though China still effectively controls the global pipeline for most critical minerals (a broader category that includes rare earths as well as more commonly known metals and minerals such as lithium and cobalt), the U.S. has been at work for at least the past five years developing its own domestic supply chain. Much of that work has fallen to the Department of Energy, whose Loan Programs Office has funded mining and processing facilities, and whose Office of Manufacturing and Energy Supply Chains hasfunded and overseen demonstration projects for rare earths and critical minerals mining and refining.
The LPO is in line for dramatic cuts, as Heatmap has reported. So, too, are other departments working on rare earths, including the Office of Manufacturing and Energy Supply Chains. In its zeal to slash the federal government, the Trump administration may have to start from scratch in its efforts to build up a rare earths supply chain.
The Department of Energy did not reply to a request for comment.
This vulnerability to China has been well known in Washington for years, including by the first Trump administration.
“Our dependence on one country, the People's Republic of China (China), for multiple critical minerals is particularly concerning,” then-President Trump said in a 2020 executive order declaring a “national emergency” to deal with “our Nation's undue reliance on critical minerals.” At around the same time, the Loan Programs Office issued guidance “stating a preference for projects related to critical mineral” for applicants for the office’s funding, noting that “80 percent of its rare earth elements directly from China.” Using the Defense Production Act, the Trump administration also issued a grant to the company operating America's sole rare earth mine, MP Materials, to help fund a processing facility at the site of its California mine.
The Biden administration’s work on rare earths and critical minerals was almost entirely consistent with its predecessor’s, just at a greater scale and more focused on energy. About a month after taking office, President Bidenissued an executive order calling for, among other things, a Defense Department report “identifying risks in the supply chain for critical minerals and other identified strategic materials, including rare earth elements.”
Then as part of the Inflation Reduction Act in 2022, the Biden administration increased funding for LPO, which supported a number of critical minerals projects. It also funneled more money into MP Materials — including a $35 million contract from the Department of Defense in 2022 for the California project. In 2024, it awarded the company a competitive tax credit worth $58.5 million to help finance construction of its neodymium-iron-boron magnet factory in Texas. That facilitybegan commercial operation earlier this year.
The finished magnets will be bought by General Motors for its electric vehicles. But even operating at full capacity, it won’t be able to do much to replace China’s production. The MP Metals facility is projected to produce 1,000 tons of the magnets per year.China produced 138,000 tons of NdFeB magnets in 2018.
The Trump administration is not averse to direct financial support for mining and minerals projects, but they seem to want to do it a different way. Secretary of the Interior Doug Burgum has proposed using a sovereign wealth fund to invest in critical mineral mines. There is one big problem with that plan, however: the U.S. doesn’t have one (for the moment, at least).
“LPO can invest in mining projects now,” Jacquez told me. “Cutting 60% of their staff and the experts who work on this is not going to give certainty to the business community if they’re looking to invest in a mine that needs some government backstop.”
And while the fate of the Inflation Reduction Act remains very much in doubt, the subsidies it provided for electric vehicles, solar, and wind, along with domestic content requirements have been a major source of demand for critical minerals mining and refining projects in the United States.
“It’s not something we’re going to solve overnight,” Jacquez said. “But in the midst of a maximalist trade with China, it is something we will have to deal with on an overnight basis, unless and until there’s some kind of de-escalation or agreement.”
A conversation with VDE Americas CEO Brian Grenko.
This week’s Q&A is about hail. Last week, we explained how and why hail storm damage in Texas may have helped galvanize opposition to renewable energy there. So I decided to reach out to Brian Grenko, CEO of renewables engineering advisory firm VDE Americas, to talk about how developers can make sure their projects are not only resistant to hail but also prevent that sort of pushback.
The following conversation has been lightly edited for clarity.
Hiya Brian. So why’d you get into the hail issue?
Obviously solar panels are made with glass that can allow the sunlight to come through. People have to remember that when you install a project, you’re financing it for 35 to 40 years. While the odds of you getting significant hail in California or Arizona are low, it happens a lot throughout the country. And if you think about some of these large projects, they may be in the middle of nowhere, but they are taking hundreds if not thousands of acres of land in some cases. So the chances of them encountering large hail over that lifespan is pretty significant.
We partnered with one of the country’s foremost experts on hail and developed a really interesting technology that can digest radar data and tell folks if they’re developing a project what the [likelihood] will be if there’s significant hail.
Solar panels can withstand one-inch hail – a golfball size – but once you get over two inches, that’s when hail starts breaking solar panels. So it’s important to understand, first and foremost, if you’re developing a project, you need to know the frequency of those events. Once you know that, you need to start thinking about how to design a system to mitigate that risk.
The government agencies that look over land use, how do they handle this particular issue? Are there regulations in place to deal with hail risk?
The regulatory aspects still to consider are about land use. There are authorities with jurisdiction at the federal, state, and local level. Usually, it starts with the local level and with a use permit – a conditional use permit. The developer goes in front of the township or the city or the county, whoever has jurisdiction of wherever the property is going to go. That’s where it gets political.
To answer your question about hail, I don’t know if any of the [authority having jurisdictions] really care about hail. There are folks out there that don’t like solar because it’s an eyesore. I respect that – I don’t agree with that, per se, but I understand and appreciate it. There’s folks with an agenda that just don’t want solar.
So okay, how can developers approach hail risk in a way that makes communities more comfortable?
The bad news is that solar panels use a lot of glass. They take up a lot of land. If you have hail dropping from the sky, that’s a risk.
The good news is that you can design a system to be resilient to that. Even in places like Texas, where you get large hail, preparing can mean the difference between a project that is destroyed and a project that isn’t. We did a case study about a project in the East Texas area called Fighting Jays that had catastrophic damage. We’re very familiar with the area, we work with a lot of clients, and we found three other projects within a five-mile radius that all had minimal damage. That simple decision [to be ready for when storms hit] can make the complete difference.
And more of the week’s big fights around renewable energy.
1. Long Island, New York – We saw the face of the resistance to the war on renewable energy in the Big Apple this week, as protestors rallied in support of offshore wind for a change.
2. Elsewhere on Long Island – The city of Glen Cove is on the verge of being the next New York City-area community with a battery storage ban, discussing this week whether to ban BESS for at least one year amid fire fears.
3. Garrett County, Maryland – Fight readers tell me they’d like to hear a piece of good news for once, so here’s this: A 300-megawatt solar project proposed by REV Solar in rural Maryland appears to be moving forward without a hitch.
4. Stark County, Ohio – The Ohio Public Siting Board rejected Samsung C&T’s Stark Solar project, citing “consistent opposition to the project from each of the local government entities and their impacted constituents.”
5. Ingham County, Michigan – GOP lawmakers in the Michigan State Capitol are advancing legislation to undo the state’s permitting primacy law, which allows developers to evade municipalities that deny projects on unreasonable grounds. It’s unlikely the legislation will become law.
6. Churchill County, Nevada – Commissioners have upheld the special use permit for the Redwood Materials battery storage project we told you about last week.