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US Confirms Orbital Weapon, Essex Wildlife Habitat Threatened by Data Centre — Today’s Environmental Briefing for Wed, Sep 16 2026

16 September 2026 at 14:01
Illustration of a military satellite weapon orbiting Earth above rare UK wildlife habitat threatened by development

Across the stories today, a common thread emerges: the boundaries we once drew around “the environment” — between land and sea, sky and orbit, economy and ecology — keep dissolving, revealing how deeply intertwined these systems have become.

Start with the sky, in more ways than one. The US government’s confirmation that it has deployed a weapon in Earth’s orbit marks a genuine turning point, not just for defense policy but for how we think about the commons above our heads. Space has long been treated as neutral ground; now it’s becoming contested territory, raising quiet but urgent questions about debris, escalation, and what “environment” even means when it extends past the atmosphere. Meanwhile, back on solid ground, the UK’s climate advisers delivered a pointed message to Heathrow: a third runway cannot proceed unless airlines help pay for the emissions it would unleash, potentially through carbon removal costs. It’s a small but telling signal that growth and climate accounting are becoming inseparable in policy conversations — expansion is no longer a given, even for infrastructure long considered inevitable.

That tension between growth and limits runs through much of today’s coverage. A Guardian analysis found that the world’s twenty largest private equity firms back energy portfolios emitting more greenhouse gases than all but three countries on Earth — a stark reminder that climate accountability often hides behind layers of finance most people never see. In Venezuela, a US-backed push for “legitimate” mining and a new oil megadeal are drawing warnings from environmental and human rights groups who see familiar risks dressed in new language. And in Guinea-Bissau, industrial fishmeal factories are quietly hollowing out a food fish that coastal communities have relied on for generations. Behind the numbers are real communities adapting in real time — from Vietnamese fishers losing thousands of dollars per vessel to tangled plastic waste, to Dhaka residents like Yeasmin Begum, who has spent her life breathing the smoke of a landfill she never chose to live beside.

Yet alongside these pressures, the day’s coverage also points to growing momentum around resilience and repair. Ukrainians are turning to rooftop solar to keep homes running amid bombardment — a portrait of adaptation born from necessity. A Congolese NGO now co-manages a national reserve for the first time, a homegrown model of stewardship. Moon bears rescued from bile farms are stretching their limbs in Suffolk enclosures, and three wild dog brothers wandered 2,500 miles across Zambia in search of a mate, offering an unlikely note of hope for their species. Even Griffith Park’s mountain lion — photographed beneath the Hollywood sign — helped inspire the world’s largest wildlife crossing, proof that a single image can shift infrastructure decisions.

It’s a reminder that progress and pressure often arrive together. Some communities are innovating their way through crisis; others, like the land defenders now forming self-defense units amid rising violence, are simply trying to survive it. As Brazil’s upcoming election looms over the Amazon’s future, and Chief Raoni Metuktire — one of its most storied protectors — enters palliative care, the coming months may reveal whether today’s momentum toward stewardship can outpace the forces pulling the other way.

The post US Confirms Orbital Weapon, Essex Wildlife Habitat Threatened by Data Centre — Today’s Environmental Briefing for Wed, Sep 16 2026 first appeared on EnviroLink Network.

Trump’s EPA Will Let Power Companies Unleash Unlimited Greenhouse Gas Pollution

15 September 2026 at 18:43

Climate change? What climate change?

Choosing to bury their heads in the sand on behalf of the citizens of this country and perhaps the planet at large, the Trump administration has announced that the Environmental Protection Agency will eliminate limits on greenhouse gas pollution produced by coal and natural gas power plants, the Associated Press reports.

Needless to say, it would be a staggering setback in the federal government’s ability to tackle climate change, and the effects could be long-lasting in both an environmental and legal sense. The administration is also proposing a separate rule that could prevent future administrations from imposing restrictions on greenhouse gas emissions from power plants, all but ensuring a future of ecological catastrophe.

“Tearing down our national protections against climate pollution from power plants will have enormous costs for the health, safety and well-being of families across the country,” Vickie Patton, general counsel for the Environmental Defense Fund, told the AP. “Americans everywhere are already suffering from record-breaking heat, more dangerous floods and storms, and skyrocketing insurance costs.”

Manish Bapna, the president of the Natural Resources Defense Council, told the New York Times that the EPA “is ending its legal and moral responsibility to end climate pollution.”

These changes, which involve repealing regulations passed under the preceding Biden and Obama administrations and passing new ones, have been a long time coming. 

Led by EPA administrator Lee Zeldin, the agency first proposed them last year, arguing that CO2 and other greenhouse gas emissions from power plants are neither a significant contributor to “dangerous pollution” that harms human health, nor to climate change. It follows, Trump’s EPA argues, that the agency doesn’t have the authority to regulate the emissions under the Clean Air Act, the US’s landmark air quality control law passed in 1963.

The action will almost certainly face fierce legal challenges from environmental groups.

“The Sierra Club will fight back against this reckless and dangerous proposal with everything we have in the courts, in Congress, and in communities across the country,” Holly Bender, the group’s chief program officer, said in a statement.

Trump has long been a climate change skeptic, calling it not only a “hoax,” but the “greatest con job ever perpetrated on the world.” Upon taking office in 2025, he immediately withdrew the US from the Paris Agreement for the second time (the first happened during his first term, and was overturned by president Biden). The international treaty is an agreement to limit global warming to 1.5 degrees Celsius, or 2.7 degrees Fahrenheit, past which scientists say the worst effects of climate change will be irreversible.

A clear beneficiary of the changes is the coal industry, which Trump has gone to great lengths to appease. He has proposed relaxing regulations around how it disposes of its toxic waste, and directed the federal government to pour $700 million into supporting the industry. But “clean, beautiful coal,” as Trump calls it, is pound for pound the most carbon-emitting fuel and the largest source of global CO2 emissions.

More on the environment: United Nations Concedes That Efforts to Arrest Climate Change Have Failed, and the Planet Is Now Spiraling Into Environmental Catastrophe

The post Trump’s EPA Will Let Power Companies Unleash Unlimited Greenhouse Gas Pollution appeared first on Futurism.

'That could push them over the edge': How climate change could fuel impulsive behavior

15 September 2026 at 11:52

Climate change is often discussed in terms of rising temperatures, extreme weather and environmental loss. But there's another consequence that can be harder to see: The impact on our mental health.

In this exclusive video, we explore how heat exposure influences mental state, drawing on research by Kim Meidenbauer, a neuroscientist at Washington State University who studies the effect of heat on emotion and behavior.

Editor's Note: This text was updated at 12:30 p.m. EDT to correct the spelling of Kim Meidenbauer's name.

Burning up: How can we adapt to a warming world?

As the planet warms, our environment will be transformed, but so will our bodies. This video is part of a series where we investigate the health impacts of climate change, focusing on heat, air quality, food and infection risk. We also evaluate the promising solutions that could help us adapt to our warmer future.

A collage of people dealing with extreme heat over a white background

Climate change will triple the number of days over 105 F in the US. The health impacts will be dire.

Extreme heat will become more common as the climate continues to warm. That will affect almost every facet of our health.

A collage of several images of people wearing masks with wildfire raging below them.

'Wildfire smoke is the fastest-growing environmental threat in the US': How a warming world will poison the air we breathe

Wildfires are projected to increase dramatically due to climate change. That could trigger a massive increase in heart attacks, premature births and early deaths, research reveals.

A collage of farming and people holding food.

'The apple you eat isn't the apple your granddaughter will eat': What's on the menu in a warming world?

Almost every aspect of our food system will be transformed by climate change.

The warmest summer on record: 2026 hit a scorching new high in the US

14 September 2026 at 21:00

If this summer felt hotter than usual, you're not alone. As it turns out, this past summer was the hottest on record in the United States.

This is the hottest that summer in the U.S. has been in at least 132 years. Specifically, the temperatures rose to 3 degrees Fahrenheit (1.67 degrees Celsius) above average, beating out the most recent record set in 2021 of 0.4 degrees F (0.22 degrees C) above average, according to a new report from National Oceanic and Atmospheric Administration (NOAA). And looking month-to-month, this was also the hottest August we've ever seen.

The record-breaking season saw unmatched temperature highs across the contiguous U.S. (all of the adjoining states, excluding Alaska and Hawaii which just aren't a part of this record) from June through August. But scorching temperatures aren't all that this new record reveals, as this summer was also one of the driest on record for the contiguous U.S., with more than half of the country in a drought by September. The summer of 2026 saw both extreme precipitation highs and lows across the country, too. From droughts to heavy rain, there was nothing average about the precipitation seen across the U.S. this summer.

A closer look

Digging into some of the details, the full summer was 3 degrees F above the average for the season, 74.4 degrees F (23.5 degrees C). August was 3.5 degrees F (1.94 degrees C) above average for the month at 75.6 F (24.2 C). And while most of the contiguous U.S. experienced well above average temperatures this summer, some locations felt the heat the most. The Southwest, the southern Rockies, the southwestern Plains, southern Florida, California, Nevada, New Mexico and Colorado hit particularly high temperatures this August.

Looking at the summer's unusual precipitation levels, the total precipitation across the contiguous U.S. was 0.32 inches (0.8 centimeters) below average, making this past summer the third driest on record, and the driest summer since 2000. By Sept. 1, 59.1% of the country was in drought. There was drought across the West, the upper Midwest, the Deep South and more. Over 75% of Puerto Rico lie in drought conditions as well, with 40% being in "extreme drought." And while summer might be ending, a lot of this drought is projected to continue, according to the report from NOAA. When it comes to drier lands, that also means an increased risk of wildfire.

Though these temperature differences might seem small or relatively mild at face value, they have massive consequences. As climate change progresses primarily due to greenhouse gas emissions caused by human activities like transportation and manufacturing, we continue to see a whole host of its effects across the world. This ranges from rising average temperatures and glacial ice loss to sea level rise and worsening natural disasters. Those natural disasters include events like flooding, hurricanes, wildfires and cyclones.

While different areas of the world will experience different effects of global warming, one thing remains true for all: The consequences will only continue to worsen as our planet warms.

Weather and climate events that took place in the U.S. in August, 2026.

This infographic shows some of the weather and climate events that took place in the U.S. during August, 2026. (Image credit: NOAA)

If we just look at this past August 2026 in the U.S., not only did we see record-high temperatures, but also weather and climate disasters of all varieties. Fires broke out over 10,000 acres of eastern Washington, even spreading across the state and into Oregon. More fires, in fact, spread across Nevada and Alaska while wind gusts up to 111 miles per hour (178.6 kilometers per hour) tore across South Dakota. A heatwave brought sweltering temperatures to south Florida and Hurricane Lala brought intense winds, rain and flooding to Hawaii;. And these are just a few of the many examples — from just this last month.

'There are no easy answers here': New study forecasts a dire dip in food production if key Atlantic currents collapse

Weakening Atlantic Ocean currents could cripple agriculture in some of the world's major breadbaskets, threatening global food security and raising the price of basic commodities, new research finds.

The study, which hasn't been peer-reviewed yet, investigated how a roughly 60% decline in the Atlantic Meridional Overturning Circulation (AMOC) would impact global food production. The AMOC is a system of ocean currents that regulates the global climate and brings heat from the tropics to the Northern Hemisphere.

However, the system is currently the weakest it's been in more than 1,000 years, having lost 10% to 20% of its strength due to climate change, estimates show.

In the new study, researchers used a computer model to simulate the AMOC's future decline. They modeled 100 years of change, assuming 3.6 degrees Fahrenheit (2 degrees Celsius) of warming above preindustrial levels. The team forced an AMOC slowdown over the first 50 years in one simulation but didn't modify the circulation in a second experiment, which enabled them to compare the world with and without an AMOC failure.

The model's outcomes mirrored the results of previous studies, showing broad cooling in the Northern Hemisphere and a southward shift of the belt of clouds and rain that encircles the globe near the equator. As in past studies, these effects were irreversible on human timescales, said study co-author Michael Hinge, a senior economist at the nonprofit Alliance to Feed the Earth in Disasters (ALLFED).

"Once the damage is inflicted, it stays there," Hinge told Live Science, adding that in the 50 years after the peak rate of AMOC slowdown in the model, the circulation weakened by an extra 20%. The study was posted on ALLFED's website July 7.

An agricultural "shock"

Hinge and his colleagues ran three models to look at the most common varieties of wheat, maize and rice, layering these models on top of the AMOC simulations. They found that global yields for these crops decreased by 5.3% by the 50-year mark, once the AMOC had weakened substantially.

"Lots of these effects manifest earlier, so it's a moving target," Hinge said.

He added that the results were based on a single warming scenario that was run once and used monthly rather than daily data, so they should be interpreted as a proof of concept. "We've set up a pipeline that is ready to take pretty much any AMOC scenario that can generate high-resolution climate data and see what it implies for crops," Hinge said.

While there was a 5.3% decrease overall, that global metric concealed huge differences between regions. For example, countries like Germany and Ukraine lost up to 19% of their cereal yields due to sudden, sharp cooling, while Canada showed a 12% decline in production for the same reason.

"Scandinavia, the United Kingdom and Canada are particularly exposed," Hinge said, "but there are many other [vulnerable] locations, some of which may be surprising even to the people who are living there."

For instance, the model produced a "very nasty brown splodge" of reduced precipitation over India, Pakistan and big parts of China, he said. Iran, Sudan and Eritrea, which are already water-stressed countries, also exhibited severe declines in rainfall, indicating that a portion of the agriculture there may not survive an AMOC collapse.

The 5.3% result also hides variability among years, Hinge said, because it's an average. So there may be years when global cereal losses reach 10% or more, which would bump up food prices, in part because countries might stockpile crops instead of trading them.

Global response

The regional effects of an AMOC slowdown would interact with climate change, triggering unpredictable outcomes. In particular, maladaptation — taking actions that end up backfiring — is a worry, Hinge said.

"You're preparing and setting up for much hotter temperatures or trying to develop areas for these temperatures and the trends you're seeing, and suddenly you see something different," he said. "That may cause an even larger compounding effect [on agriculture]."

The findings build on prior research led by Paul Ritchie, a climate scientist at the University of Exeter in the U.K., whose team explored the effects of an AMOC collapse on agriculture in Great Britain. That study, published in 2020, had similar limitations as the new one, so it's best to interpret both papers as a suggestion of what might happen rather than a precise forecast, Ritchie told Live Science in an email.

"I think the new study is valuable in showing the potential scale and geographic distribution of the initial agricultural shock," said Ritchie, who was not involved in the latest work. "What that would ultimately mean for food production and food security is more uncertain, because there are many possible responses by farmers, markets and governments." For that reason, the regional predictions may be more informative than the 5.3% global average, he said.

A cow stands in a parched, cracked field in India.

An AMOC collapse could reduce rainfall over the Indian subcontinent, crippling agriculture in this region. (Image credit: Bhaswaran Bhattacharya/IndiaPictures/Universal Images Group via Getty Images)

Average food prices worldwide could rise by 17% to 40% if the AMOC weakens to the extent it did in the model, the study predicts. The level of increase depends on how countries respond to the shock and their degree of preparedness, as well as on whether agriculture can be sustainably expanded in places like the African Sahel (the semi-arid zone directly south of the Sahara Desert) and Brazil, the analysis suggests.

The U.S. would not be spared from this price jump, and the model indicated that the country could see crop losses of about 3% for domestic wheat and corn. This loss would likely impact other foods that rely on cereal inputs, like meat, Hinge said. "The variety of foods available in the stores may well diminish for periods," he added.

An AMOC collapse would fundamentally deepen the need for countries to trade with each other, because some regions — such as the Indian subcontinent, China, Iran, Russia, Ukraine and Canada — could endure this giant shift only if they imported more food, Hinge said.

"Should countries turn inwards and start to restrict exports in an effort to ensure access for their own citizens first, or deal with the uncertainty, or offset concerns, then this will massively magnify the effects of AMOC," he said.

If governments behave as they have during past shocks, such as the 2008 financial crisis and the COVID-19 pandemic, they may restrict trade and start stockpiling food if and when the effects of AMOC weakening begin to show, Hinge predicted. The researchers hope their work and future modeling can help people understand the need to take swift, effective action if a collapse were to occur, he said.

Currently, "if that warning light starts flashing, we're not sure what to do with it," Hinge said. "There are no easy answers here; an AMOC [collapse] would be deeply catastrophic."

In 1959, the first nuclear-powered merchant ship set sail before the world was ready

11 September 2026 at 13:54

By the time naval architecture firm George G. Sharp tasked Jack Heaney with the design of the world’s first nuclear-powered merchant ship, the Glasgow-born designer had already broken many styling norms. In the mid-1940s, Heaney transformed routine ocean transport into a festive occasion when he designed the interiors of the SS President Wilson and SS President Cleveland with Hawaiian murals, carved glass panels, and a smoking lounge dressed in playful, exotic wall art. His gift for making the mundane desirable wasn’t confined to ocean liners—New York’s Museum of Modern Art had already put one of his stackable aluminum chairs on display in 1947. But nothing in Heaney’s career had prepared him for the commission that reached his drawing board in 1957.

At the time, the shadow of 1945, when the world first witnessed the terrifying power of the atom, loomed large. Following World War II, the United States and Soviet Union were locked in a nuclear arms race, and the public associated splitting atoms with annihilation. Atoms meant war. 

To shift that sentiment, President Eisenhower launched his Atoms for Peace initiative, aimed at demonstrating the civilian benefits of nuclear technology—and the NS Savannah, or Nuclear Ship Savannah, was to be its flagship. Heaney suddenly had a much more daunting task than usual; he would have to make the feared desirable.

More than half a century since theSavannah was decommissioned in 1971, there is no nuclear-powered merchant ship in active commercial service anywhere in the world. Four nations have tried. None succeeded, mostly because the economics were not compelling enough and no one trusted nuclear ships. 

In the interim, nuclear reactors have only become smaller and safer. Now, as the true cost of burning oil at sea comes due—commercial shipping produces more than three percent of global greenhouse gas emissions—the economics of nuclear-powered merchant ships may finally be compelling. But the problem Heaney was hired to solve in 1957 still stands in the way, persuading people to trust what they fear. 

The making of a maritime designer

John “Jack” Heaney was born in Glasgow in 1904. He grew up during a time when the River Clyde, which runs through the heart of Glasgow, served as the world’s premiere shipbuilding hub, with nearly 40 shipyards situated on its banks. Heaney studied naval architecture at the University of Glasgow, while taking classes at the Glasgow School of Art and apprenticing at the Fairfield Shipbuilding and Engineering Company. 

When Heaney emigrated to New York in 1926, he worked a string of jobs, including a brief stint  as a door-to-door refrigerator salesman, before joining the New York City-based naval architecture firm George G. Sharp, Inc. in 1937. At Sharp, Heaney quickly developed a reputation for having an engineer’s eye and artist’s hand, helping design the interiors of several prominent passenger-cargo ships—a specialized form of merchant ship that is part cruise liner, part cargo vessel—including the Robin Line, the Delta Line, and the American President Lines. In 1947, the same year MoMA put his chair on display, Heaney opened his own design firm on West 54th Street in Manhattan. A decade later, the Savannah project came across his bow.

Originally tasked with the ship’s exterior design, Heaney eventually assumed responsibility for the ship’s interior styling, too. From stem to stern, it was Heaney’s job to design a nuclear-powered ship that passengers would want to cruise on for pleasure, and that businesses would want to ship merchandise on for commerce.

black and white image of ship
The NS Savannah was the first nuclear-powered merchant ship. Image: Contributor / Getty Images / Mondadori Portfolio

Atoms for Peace

Eisenhower had announced the Atoms for Peace initiative four years earlier, in a December 1953 address to the United Nations. The atom, he argued, should be turned from a great destructive force “into a great boon, for the benefit of all mankind.” Under Eisenhower, the U.S. began sharing reactor technology and medical isotopes with allied nations. Atoms for Peace sought to prove that the technology that had obliterated two cities could also light homes, treat cancer, build harbors, and move ships. 

The U.S. Navy, meanwhile, saw the advantages of a vessel that could continuously plow the ocean without refueling for months, or even years. The USS Nautilus was the first atomic-powered vessel, a sub, launching in 1955. By the time Sharp signed Heaney to the Savannah project, two more atomic-powered subs were patrolling the world’s oceans (USS Skate and USS Seawolf). But military vessels primarily keep to military ports, so the public rarely saw them. 

Eisenhower needed a civilian showcase that would disassociate atom-splitting from mushroom clouds. That showcase would be Heaney’s NS Savannah. As a passenger-cargo ship, the Savannah would routinely sail into commercial harbors like Rotterdam, Le Havre, and New York, normalizing nuclear reactors and demonstrating their safety. At least, that was the goal.

How safe is our A-ship?

In 1959, the same year the Savannah launched, Popular Science ran a short feature designed to quell readers’ fears: “How Safe Is Our A-Ship Savannah?” The staff-written story read more like a safety brief than an objective review. While boasting about its efficiency—“on a single loading of A-fuel, the Savannah will have a range of 350,000 nautical miles”—the article focused mainly on the “worst possible accidents that might befall the first atomic merchant vessel.” Such caution seemed justified. That same year, Denmark canceled a scheduled visit by the USSSkate to Copenhagen, and England agreed to receive visiting nuclear submarines only at the remote Isle of Portland, population 12,000, rather than major ports.

Popular Science’s initial coverage was not anomalous. “Passengers will receive no more radiation on the Savannah than they receive from normal background radiation of the earth in their day-to-day lives,” The New York Times reassured its readers.

By 1961, however, as the Savannah prepared to begin its cargo and passenger service, which commenced in 1962, Popular Science’s editors were fully onboard, launching a four-part series that spanned four consecutive issues and more than a dozen pages. The do-it-yourself mini-manual provided detailed instructions for readers to build and sail their own four-foot model of the ship. Four different writers and editors took part in the project: hull casting one month, superstructure the next, then a working steam turbine, and finally radio controls. Even as Popular Science promoted its features, the real Savannah was being fitted with Heaney’s final touches. 

Black and white image of a white man assembling a ship model.
The January 1961 issue of Popular Science shows a model of the NS Savannah assembled with screws and dowels. Image: Popular Science, January 1961 issue

Domesticating the atom

On a conventional ship, fuel is stored low in the hull, in tanks that any port can refill with diesel by hose. But Savannah’s single, massive fuel core had to sit in the hull’s center, beneath an opening in the deck, so it could be accessible by overhead crane for refueling. Heaney’s answer to this exterior design problem became the ship’s signature: a streamlined, teardrop-shaped superstructure. Popular Science’s writers praised Savannah’s sleek, futuristic lines as “graceful as a racing yacht’s,” and called its reactor housing “a well-placed superstructure [that] blends airfoil curves with sharply angled planes for a dazzling effect.”

Below decks, Heaney took the fear problem head on, weaving Atomic Age motifs into the ship’s interior. In the veranda, the cocktail bar’s backlit wine rack depicted the trilinear chart of the nuclides in blue, red, and yellow glass; the tables ringing the dance floor glowed, their tops lit by “panelescent,” or electrically charged luminescent panels. Even the floor tiles in the main stairwell carried the atomic theme. A separate lounge nearby offered passengers a closed-circuit television view into the reactor containment vessel. Overhead light beamed down through light fixtures adorned with stylized atoms.

In the dining room, sculptor Pierre Bourdelle installed a wall mural titled “Fission.” Nearby, suspended in glass, hung a small gold model of the NSSavannah’s namesake, the 1819 steamship SSSavannah, the first ship to cross the Atlantic under sail and steam. Heaney hoped such Old World symbolism would make people feel comfortable dining, dancing, and sleeping no more than a dozen yards from a nuclear reactor.

As a design achievement, Savannah was a triumph. Her passenger cabins were mostly full from 1962 to 1965, and more than 1.4 million people toured the ship across 46 ports in 13 countries. 

Plats and silverware with atom design.
Even the plates and silverware used on the NS Savannah had an atomic motif. Image: Baltimore Sun / Contributor / Getty Images / Kim Hairston

Sunk by economics—and fear

But novelty was never going to be enough to move public sentiment or make Savannah pay for itself. The combined ship-and-reactor construction cost ran to roughly $46 million, three to four times what a comparable conventional freighter cost at the time, and the ship’s specialized nuclear crew commanded specialized wages. No private insurer would touch a nuclear-powered merchant ship; the U.S. government had to indemnify it instead, extending $500 million in federal liability coverage just to get foreign ports to receive the ship. Every port call required a small diplomatic mission of its own, negotiated weeks in advance, with tugs standing by in case of an accident. Some countries, like Australia, New Zealand, and Japan, never accepted Savannah.

By the end of the 1960s, the U.S. Defense Department, one of merchant shipping’s largest customers, had concluded that conventional freighters remained the better bet. With no federal appetite left to continue funding a revenue-losing program, Savannah was withdrawn from service in late 1971 with no plans to build another.

The timing proved fateful. Two years after Savannah was decommissioned, the 1973 oil embargo sent fuel prices soaring; had it still been sailing, the ship’s independence from oil might have tipped the scales for commercial customers, even if the public remained fearful.

Fear kills future “A-ships”

In 1979, the partial meltdown at Three Mile Island—eight years after Savannah’s own retirement—hardened American public fear of nuclear power for more than a generation. The Soviet Union’s Chernobyl accident in 1986 and Japan’s Fukushima accident in 2011 reinforced that fear.

Three other nations tried what the U.S. attempted with Savannah, and each ran into the same wall. West Germany’s nuclear-powered merchant ship Otto Hahn logged 650,000 nautical miles over a decade before port restrictions and rising costs forced her conversion to diesel in 1979—the same year as Three Mile Island. 

Japan’s nuclear-powered Mutsu fared worse. Local fishermen blockaded it in harbor for two years before the ship could even sail, and when its reactor went online in 1974, it leaked. The crew had to improvise radiation shielding using boiled rice and old socks. 

The Soviet Union’s nuclear-powered Sevmorput, the last of the four and the only one to operate into the 21st century, has sat idle at a dock in Murmansk since 2024. As of today, not a single nuclear-powered merchant ship plows the seas anywhere on Earth.

Related 'Century in Motion' Stories

Take two?

And yet, military fleets have proven the technology works. The U.S. Navy alone has logged more than 6,200 accident-free reactor-years since 1955. What’s more, reactor designs have advanced significantly since Heaney’s day. Small modular reactors, or SMRs, have been engineered to be smaller, safer, and simpler to certify than anything available in 1959. SMRs are now in active development for maritime use, including a Norwegian consortium’s NuProShip program, and a molten-chloride test reactor that Core Power and TerraPower are building at the Idaho National Laboratory. 

The pressure to act has intensified, too. Commercial shipping produces more than three percent of global greenhouse gas emissions—a share that could climb to 10 percent by 2050 if the industry does nothing while the rest of the world decarbonizes. In 2023, the International Maritime Organization, which governs commercial shipping, committed its member states to a net-zero target by 2050, a goal serious enough that the IMO is now weighing previously unthinkable measures like SMRs.

But none of it matters if nuclear-powered merchant ships remain taboo.

Sixty-five years after Jack Heaney tried to make the atom desirable, the real problem with nuclear reactors was less about the technology and more about public perception. Unfortunately, that perception has kept a viable climate solution off the table for more than half a century, at a cost now measurable in our planet’s atmosphere. As the shipping industry searches for a way to shed its considerable share of global carbon emissions, it is not physics but persuasion that remains unsolved.

In A Century in Motion, Popular Science revisits fascinating transportation stories from our archives, from hybrid cars to moving sidewalks, and explores how these inventions are re-emerging today in surprising ways.

The post In 1959, the first nuclear-powered merchant ship set sail before the world was ready appeared first on Popular Science.

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