If finalized, the measure would protect an estimated 36 million U.S. workers from injuries related to heat exposure on the job — establishing the first major federal safety standard of its kind. Photo via Getty Images

President Joe Biden on Tuesday proposed a new rule to address excessive heat in the workplace, warning — as tens of millions of people in the U.S. are under heat advisories — that high temperatures are the country's leading weather-related killer.

If finalized, the measure would protect an estimated 36 million U.S. workers from injuries related to heat exposure on the job — establishing the first major federal safety standard of its kind. Those affected by excessive heat in the workplace include farmworkers, delivery and construction workers, landscapers, and indoor workers in warehouses, factories, and kitchens.

Biden highlighted the proposed rule as one of five steps his Democratic administration is taking to address extreme weather as Hurricane Beryl is already ripping through the Caribbean in an ominous sign for the summer.

Biden used his remarks at the D.C. Emergency Operations Center to blast those Republican lawmakers who deny the existence of climate change, saying, “It's not only outrageous, it's really stupid.” Biden noted that there are human and financial costs from climate change, saying that weather-inflicted damage last year cost the economy $90 billion.

“More people die from extreme heat than floods, hurricanes and tornadoes combined,” Biden said. “These climate fueled extreme weather events don’t just affect people’s lives. They also cost money. They hurt the economy, and they have a significant negative psychological effect on people.”

The Democratic president, who's seeking reelection in part on his environmental record, said that the Federal Emergency Management Agency was also finalizing a rule to factor in possible flooding risks for federal construction projects.

In addition, FEMA was announcing $1 billion in grants to help communities deal with natural disasters, while the Environmental Protection Agency was releasing a new report on climate change's impacts. Lastly, Biden said his administration would hold a conference titled “White House Summit on Extreme Heat” in the coming months.

Despite increased awareness of the risks posed to human health by high temperatures, extreme heat protections — for those routinely exposed to heat index readings above 80 degrees Fahrenheit (27 degrees Celsius) — have lagged.

“The purpose of this rule is simple,” a senior White House administration official told reporters. “It is to significantly reduce the number of worker-related deaths, injuries, and illnesses suffered by workers who are exposed to excessive heat ... while simply doing their jobs.”

Under the proposed rule, employers would be required to identify heat hazards, develop emergency response plans related to heat illness, and provide training to employees and supervisors on the signs and symptoms of such illnesses. They would also have to establish rest breaks, provide shade and water, and heat acclimatization — or the building of tolerance to higher temperatures — for new workers.

Penalties for heat-related violations in workplaces would increase significantly, in line with what workplaces are issued for violations of Occupational Safety and Health Administration rules, a senior White House administration official said.

An estimated 2,300 people in the U.S. died from heat-related illness in 2023. From 1992 to 2022, a total of 986 workers across all industry sectors in the U.S. died from exposure to heat, with construction accounting for about 34% of all occupational heat-related deaths, according to the Environmental Protection Agency. During that time, 334 construction workers died due to heat exposure on the job.

As the hottest month of the year gets underway, millions of Americans will be at greater risk of heat strokes, dangerous dehydration and heat-related heart stress.

The Labor Department has been developing a standard for how workplaces deal with heat since 2021. Last year, OSHA held meetings to hear about how the proposed measures could affect small businesses.

The AFL-CIO union federation praised the measure. “If finalized, this new rule would address some of the most basic needs for workers’ health and safety,” said AFL-CIO President Liz Shuler.

Heat protection laws in the U.S. have faced steady industry opposition, including from chambers of commerce and other business associations. Many say a blanket mandate would be difficult to implement across such a wide range of industries.

California, Colorado, Oregon, Minnesota and Washington are the only states with workplace standards for heat exposure. Over the past year, Florida and Texas, led by Gov. Ron DeSantis and Gov. Greg Abbott, both Republicans, passed legislation preventing local governments from requiring heat protections for outdoor workers.

If finalized, the Biden administration's rule would override state standards, and states with existing procedures to deal with heat would have to institute measures at least as stringent as the finalized federal rule.

The OSHA plan was announced as the EPA released a new report on climate change indicators in the U.S. The report, last updated in 2016, highlights data showing the continuing and far-reaching impacts of climate change in the U.S. This year’s report adds heat-related workplace deaths and marine heat waves as climate change indicators.

The report lists 57 indicators related to either the causes or effects of climate change.

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Houston geothermal startup bumps Series B to $180M with Nabors investment

fresh funding

Houston-based geothermal startup Quaise Energy has closed its Series B fundraising round at $180 million after inking a significant investment from another local energy leader.

Quaise, which is developing a 50-megawatt superhot geothermal plant in Oregon, announced a "first close" of the round last month at $134 million, led by San Francisco-based investment firm Prelude Ventures. The $46 million bump has been fueled by a $35 million investment from Houston-based Nabors Industries.

The funding will go toward the continued development of the company's superhot geothermal plant, Project Obsidian, as well as the commercialization of Quaise's millimeter-wave drilling system, according to a news release.

“We are unlocking the most powerful clean energy source on Earth, and the Series B signals deep conviction across a wide range of investors,” Carlos Araque, Quaise CEO and president, said in the release. “Nabors is an invaluable partner as we move millimeter wave drilling to full commercial operations at Project Obsidian and beyond.”

Nabors, a repeat investor in Quaise, has also entered into a strategic framework agreement with Quaise. Under the agreement, Quaise will have access to a dedicated Nabors land rig and drilling platform. Nabors will also provide expertise in reservoir modeling, well design and drilling strategy.

Last year, Quaise drilled to a depth of about 330 feet using its millimeter-wave technology at its field site in Central Texas. Canary Media previously reported that Quaise plans to drill to nearly 3,300 feet later this year and to deploy its millimeter-wave technology at its power plant in 2027. The plant is expected to deliver power to the Pacific Northwest in 2030.

Quaise and Nabors say the partnership will improve drilling performance, reduce costs and accelerate project timelines.

“Superhot geothermal has the potential to make clean energy ubiquitous. That is why we are excited about our close relationship with Quaise,” Anthony Petrello, president and CEO of Nabors, added in the release. “Quaise’s millimeter wave technology changes the equation entirely by reaching superhot rock at temperatures and depths that are inaccessible with conventional drilling, transforming geothermal from a location-dependent resource into a global energy solution. Combined with Nabors’ drilling expertise and infrastructure, we see a path to gigawatt-scale geothermal power that no other company can offer today.”

Quaise reports that with the latest funding, it has now raised $280 million. It raised $21 million in a Series A1 financing round in 2024 and a $52 million Series A in 2022.

The company announced in March that it was aiming to raise $200 million for Project Obsidian through $100 million in Series B funding, plus an additional $100 million from grants, debt and project-level finance.

Houston's KBR tapped to provide tech for first SAF plant in Kazakhstan

clean deals

Houston-based engineering and technology firm KBR Inc. has been tapped to provide technology for Kazakhstan's first sustainable aviation fuel (SAF) production plant.

KazMunayGas-Aero LLP (KMG-Aero), a subsidiary of Kazakhstan’s national oil and gas company KazMunayGas, and KazFoodProducts awarded the contract to KBR for the project. The plant will use the alcohol-to-jet (AtJ) process for producing aviation fuel and aims to support President Kassym-Jomart Kemeluly Tokayev’s goal of boosting Kazakhstan's profile as a global aviation player, according to a news release from KBR.

"We are honored to support KMG-Aero and KFP in advancing the national commitment to reduce greenhouse gas emissions, recognizing the pivotal role of aviation decarbonization in achieving these strategic objectives,” Jay Ibrahim, president of KBR Sustainable Technology Solutions, said in the release.

KBR will provide its PureSAF technology and engineering design for the project. Invented and developed by Swedish Biofuels AB, the PureSAF tech will be used to convert alcohol-based feedstocks into SAF. The PureSAF Technology can process multiple feedstocks—like bioethanol, syngas, carbon dioxide and hydrogen—and convert them to SAF, diesel and gasoline, according to KBR.

"KBR’s PureSAF is a feed-flexible, bankable technology that is designed to deliver high SAF yields and supports the project across the full lifecycle,” Ibrahim added in the release. “We look forward to closely collaborating and supporting the successful execution of this landmark SAF project.”

Earlier this summer, KBR was also chosen to provide technology for what’s expected to be Asia's first commercial-scale ethanol-to-jet (SAF) plant. The plant has a planned production capacity of up to 100,000 tons of SAF per year.

In addition to the SAF projects, KBR also announced this month that it has been selected by ORNX Green Hydrogen to provide proprietary ammonia technologies for a low-cost green ammonia project in Morocco.

The commitments come as KBR shifts its focus solely toward sustainability technology and services. The company is in the process of spinning off its Mission Technology Solutions business, which KBR recently announced will be named Trinzic. The remaining company, "New KBR," will serve the ammonia and syngas, chemical and petrochemicals, clean refining and circular economy markets.

Army to build nuclear microreactors at 5 U.S. bases, including Texas

Nuclear News

The U.S. Army announced Wednesday that it plans to add nuclear microreactors at five military bases from New York to Texas as a reliable source of energy independent of the commercial electric grid.

The announcement comes as the Trump administration pushes hard to develop the next generation of nuclear power, including billions in loans for large nuclear reactors to meet skyrocketing power demand from data centers and a pilot program to boost advanced reactor designs and projects for military and civilian use. No nuclear microreactors are supplying power to the commercial electric grid in the United States today.

Five companies selected by the Army will be awarded up to $2.2 billion in total over five years to own, construct and operate the microreactors, if they hit set milestones along the way for their performance. The Army expects that more than 20 nuclear microreactors will be built and operated.

Army and industry officials say microreactors offer a resilient power source for critical infrastructure at military installations in case the grid fails. Reactors can run for years without refueling.

Army Secretary Dan Driscoll said the awards will accelerate the military’s ability “to deliver safe, reliable baseload power directly to our installations. We are building the energy resilience necessary to project combat power globally, without relying on potentially vulnerable external grids,” he said.

The grants are part of the Army's “Janus Program” launched last year to deliver next-generation nuclear energy. Officials hope to push nuclear development forward so that advanced reactor designs move beyond experiments and prototypes to provide power for years to come. This will be the “spear tip,” said Jeff Waksman, principal deputy assistant secretary of the Army for installations, energy and environment.

“That is the transition that we are trying to effect here,” he said on a call with reporters Wednesday. “These are not meant to be Army-specific designs.”

Critics of building more nuclear reactors say they’re too expensive and riskier than other energy sources. The Army program is using the military's “deep pockets to provide a hidden subsidy” to nuclear companies that can't find private-sector customers for their hypothetical and uneconomical reactors, said Alan J. Kuperman, associate professor at the Lyndon B. Johnson School of Public Affairs at the University of Texas at Austin and coordinator of the Nuclear Proliferation Prevention Project.

The reactors will be licensed by the Army, rather than the U.S. Nuclear Regulatory Commission, which licenses commercial nuclear reactors. Kuperman said it's “a dangerous scam on many levels.”

Waksman said these reactors will shut down safely in case of a failure, they're small and the Army wouldn't add them to installations without being certain they are safe. He said the Army is working on a deal with the Energy Department to remove radioactive waste, and there won't be any long-term storage on these installations.

The Army is working to align its regulatory processes as much as possible, Waksman said, so that companies won’t need major changes to their designs to be later licensed by the NRC. Along with federal funding, the Army expects billions of dollars in private capital investment.

Army leads the military’s adoption of nuclear energy

President Donald Trump signed executive orders in May 2025 to speed up the development of nuclear power. The Army was tasked with ensuring that an advanced reactor would start operating at a domestic military installation no later than Sept. 30, 2028. The Janus program is named for the ancient Roman god of transitions.

Officials know that delivering nuclear power to a military base will be a challenge, so they picked five companies in case one or more fail, Waksman said. The selected companies are: Antares Nuclear at Fort Bragg in North Carolina; BWXT at Fort Campbell in Kentucky; General Atomics Electromagnetic Systems at Fort Hood in Texas; Radiant Industries at Fort Benning in Georgia; and Westinghouse Government Services at Fort Drum in New York.

Senate Minority Leader Chuck Schumer asked the Army to select Fort Drum. The critical missions Fort Drum supports require secure power generation, the New York Democrat said.

The military installations will remain connected to the grid. The reactors would not completely power them. Each reactor will provide between 1 megawatt to 20 megawatts of power, depending on the company's design. Major bases use as much power as a small city. Antares and Radiant are planning to deliver their reactors in three-packs, Waksman said.

The Army now uses diesel as a primary backup for critical infrastructure. But in a conflict, Waksman said, the Army may not be able to move fossil fuels easily wherever it needs them.

“That makes nuclear energy just a natural game changer,” he said. “It makes sense for the Army to take the lead here.”

A reactor at Fort Belvoir in Virginia, completed in 1957, was the first nuclear power reactor to provide electricity to a commercial power grid in the United States for an extended period, according to the U.S. Army Corps of Engineers.

Companies say this will accelerate US nuclear development

California-based Antares reached a crucial milestone under the U.S. pilot program that could allow it to produce electricity at Idaho National Lab next year. The company said the Army's announcement extends its momentum. Westinghouse Government Services said it’s proud to support the Army’s efforts to strengthen energy security and innovate.

Tori Shivanandan, president and chief operating officer of California-based Radiant, said the Army’s $750 million award “shows confidence in Radiant’s product and ability to manufacture, deploy and safely operate nuclear microreactors for the American military.” The Janus program “will build a stronger and more resilient America,” she said.

General Atomics Electromagnetic Systems said its reactor is designed to operate in remote, off-grid and extreme environments for 40 years. It said it will draw on more than 70 years of nuclear expertise to provide safe, dependable and independent power for the military.

Rex Geveden, BWXT's president and chief executive officer, said, “As we commence work on the Janus program, we are delivering the nation’s most credible and reliable path to deployable nuclear power.”