The National Archives has released thousands of pages of declassified records related to the assassination of President John F. Kennedy in 1963. From a report: The records were posted to the National Archives' website, joining recently released records posted in 2023, 2022, 2021 and 2017-2018.

"This release consists of approximately 80,000 pages of previously-classified records that will be published with no redactions," said the announcement from the Office of the Director of National Intelligence. "Additional documents withheld under court seal or for grand jury secrecy, and records subject to section 6103 of the Internal Revenue Code, must be unsealed before release."

President Donald Trump signed an executive order on Jan. 23 directing the release of all remaining records related to the assassination, saying it was in the "public interest" to do so. Tuesday's initial release contained 1,123 records comprising 32,000 pages. A subsequent release on Tuesday night contained 1,059 records comprising 31,400 additional pages.
See Also: U.S. Release of Unredacted JFK Files 'Doxxed' Officials, Including Social Security Numbers.

The devastating impacts of the climate crisis reached new heights in 2024, with scores of unprecedented heatwaves, floods and storms across the globe, according to the UN's World Meteorological Organization. From a report: The WMO's report on 2024, the hottest year on record, sets out a trail of destruction from extreme weather that took lives, demolished buildings and ravaged vital crops. More than 800,000 people were displaced and made homeless, the highest yearly number since records began in 2008.

The report lists 151 unprecedented extreme weather events in 2024, meaning they were worse than any ever recorded in the region. Heatwaves in Japan left hundreds of thousands of people struck down by heatstroke. Soaring temperatures during heatwaves peaked at 49.9C at Carnarvon in Western Australia, 49.7C in the city of Tabas in Iran, and 48.5C in a nationwide heatwave in Mali.

Record rains in Italy led to floods, landslides and electricity blackouts; torrents destroyed thousands of homes in Senegal; and flash floods in Pakistan and Brazil caused major crop losses.

Storms were also supercharged by global heating in 2024, with an unprecedented six typhoons in under a month hitting the Philippines. Hurricane Helene was the strongest ever recorded to strike the Big Bend region of Florida in the US, while Vietnam was hit by Super Typhoon Yagi, affecting 3.6 million people. Many more unprecedented events will have passed unrecorded.

Italian newspaper Il Foglio claims to have published the world's first entirely AI-generated edition as part of a month-long experiment to explore AI's impact on journalism. The special four-page supplement, available in print and online, features AI-written articles, headlines, and reader letters. The only thing the human journalists provided were prompts. The Guardian reports: The front page of the first edition of Il Foglio AI carries a story referring to the US president, Donald Trump, describing the "paradox of Italian Trumpians" and how they rail against "cancel culture" yet either turn a blind eye, or worse, "celebrate" when "their idol in the US behaves like the despot of a banana republic." The front page also features a column headlined "Putin, the 10 betrayals," with the article highlighting "20 years of broken promises, torn-up agreements and words betrayed" by Vladimir Putin, the Russian president.

In a rare upbeat story about the Italian economy, another article points to the latest report from Istat, the national statistics agency, on the redistribution of income, which shows the country "is changing, and not for the worse" with salary increases for about 750,000 workers being among the positive effects of income tax reforms. On page 2 is a story about "situationships" and how young Europeans are fleeing steady relationships. The articles were structured, straightforward and clear, with no obvious grammatical errors. However, none of the articles published in the news pages directly quote any human beings.

The final page runs AI-generated letters from readers to the editor, with one asking whether AI will render humans "useless" in the future. "AI is a great innovation, but it doesn't yet know how to order a coffee without getting the sugar wrong," reads the AI-generated response.

The Federal Trade Commission has removed over 300 business guidance blogs published during former President Biden's term, including consumer protection information on AI and privacy lawsuits against Amazon and Microsoft, WIRED reported Tuesday, citing current and former FTC employees.

Deleted posts included guidance about Amazon's alleged use of Ring camera data to train algorithms, Microsoft's $20 million settlement over Xbox children's data collection, and compliance standards for AI chatbots. New FTC Chair Andrew Ferguson has pledged to pursue tech companies but with focus on alleged conservative censorship rather than data collection practices.

The Dutch parliament approved motions urging the government to reduce reliance on U.S. software companies by developing a sovereign cloud platform and reconsidering contracts with American firms. Reuters reports: While such initiatives have foundered in the past due to a lack of viable European alternatives, lawmakers said changing relations with the United States under the presidency of Donald Trump have given the issue fresh urgency. "The question we as Europeans must ask ourselves is: do we feel comfortable with people like Trump, (Meta CEO Mark) Zuckerberg and (X owner Elon) Musk ruling over our data?" said Marieke Koekkoek of the pro-European Volt party, who authored one of the eight motions, in an email to Reuters.

In addition to launching a sovereign cloud services platform, the motions called on the government to re-examine a decision to use Amazon's web services for the Netherlands' internet domain hosting, and to develop alternatives to U.S. software and preferential treatment for European firms in public tenders. [...] Bert Hubert, a Dutch technology expert who has advocated for reducing dependency on the U.S., said: "This is only the first step in potentially doing something." But he said one important outcome would be forcing agencies to publicly report on risks related to their reliance on U.S. cloud firms. "With the advent of Trump 2.0, it has become clear that this is not something you can harmlessly sign off on," he said.

U.S. Vice President J.D. Vance denounced decades of globalization for hampering American innovation in a speech to entrepreneurs and venture capitalists on Tuesday, arguing that offshoring has eroded U.S. technological leadership. "Our workers have been failed by the government of the last 40 years," Vance told the American Dynamism Summit, criticizing two "conceits" of globalization: that nations manufacturing products wouldn't eventually design them too, and that cheap foreign labor benefits innovation.

"As they got better at the low end of the value chain, they also started catching up on the higher end. We were squeezed from both ends," Vance said, adding that "cheap labor is fundamentally a crutch" that inhibits technological advancement. The Trump administration recently rolled back Biden-era AI regulations, with Vance emphasizing their goal to "incentivize investment in our own borders, in our own businesses, our own workers and our own innovation." Vance, a former venture capitalist, dismissed fears about AI eliminating jobs, comparing it to ATMs which ultimately created more financial sector roles.

Harvard University on Monday announced that tuition will be free for students from families with annual incomes of $200,000 or less starting in the 2025-26 academic year. From a report: "Putting Harvard within financial reach for more individuals widens the array of backgrounds, experiences, and perspectives that all of our students encounter, fostering their intellectual and personal growth," Harvard University President Alan M. Garber said in a statement. "By bringing people of outstanding promise together to learn with and from one another, we truly realize the tremendous potential of the University."

The new plan will enable about 86% of U.S. families to qualify for Harvard financial aid and expand the Ivy League college's commitment to providing all undergrads the resources they need to enroll and graduate, according to Garber.

Abstract of a paper published on National Bureau of Economic Research: This paper investigates self-reported wedges between how much people work and how much they want to work, at their current wage. More than two-thirds of full-time workers in German survey data are overworked -- actual hours exceed desired hours. We combine this evidence with a simple model of labor supply to assess the welfare consequences of tighter weekly hours limits via willingness-to-pay calculations. According to counterfactuals, the optimal length of the workweek in Germany is 37 hours. Introducing such a cap would raise welfare by .8-1.6% of GDP. The gains from a shortened workweek are largest for workers who are married, female, white collar, middle aged, and high income. An extended analysis integrates a non-constant wage-hours relationship, falling capital returns, and a shrinking tax base.

Prolonged exposure to extreme heat accelerates biological aging in older adults, increasing the risk of age-related illnesses, according to research published in Science Advances.

In a nationally representative study of 3,686 U.S. adults over age 56, scientists found that long-term exposure to high heat days was associated with accelerated epigenetic aging - molecular changes that affect how genes function without altering DNA itself.

Researchers from the University of Southern California discovered that individuals living in areas where heat index values regularly exceed 90F showed signs of being biologically older than those in cooler regions, even after controlling for factors like wealth, education, and lifestyle habits. Six-year cumulative heat exposure linked to as much as 2.48 years of accelerated aging in one measurement.

This week the Free Software Foundation published memorabilia items for an online silent auction — part of their big 40th anniversary celebration. "Starting March 17, the FSF will unlock items each day for bidding on the LibrePlanet wiki at 12:00 EDT.. Bidding on all items will conclude at 15:00 EDT on March 21, 2025...

"During the auction, the FSF welcomes everyone who supports user freedom to bid on historical and symbolic free software memorabilia," they annouced this week: The auction is split into two parts: a silent auction hosted on the LibrePlanet wiki from March 17 through March 21 and a live auction held on the FSF's Galène videoconferencing server on March 23 from 14:00-17:00. The auction is only the opening act to a months-long itinerary celebrating forty years of free software activism...

Executive director Zoë Kooyman adds: "These items are valuable pieces of FSF history, and some of them are emblematic of the free software movement. We want to entrust these memorabilia in the hands of the free software community for preservation and would love to see some of these items displayed in exhibitions." All in all, there are twenty-five pieces that are either directly part of the FSF's history and/or representative of the free software movement that will be available in the silent auction.

Winning bidders can rest assured that all proceeds from this auction will go towards the FSF's continued work to promote computer user freedom worldwide.
Silent auction items include:

• A print of the famous Gnu-with-Tux-as-superheroes poster signed by Richard Stallman and artist Lissanne Lake. Bids start at $300...

• A mid-1980s VT220 terminal that "still works, and can be connected to your favorite free machine over the serial interface... This is the same terminal that was on the FSF reception desk for some time, introducing visitors to ASCII art, NetHack, and other free software lore." Bids start at $250... (with estimate shipping costs of $100)

• An Amiga 3000UX donated to the GNU project "sometime in 1990." While it now has a damaged battery, "FSF staff programmers used it at MIT to help further some early development of the GNU operating system." Starting bid: $300 (with estimated shipping costs of $400).

• "A variety of plush animals that had greeted visitors at its former offices in Boston on 51 Franklin Street..."

"The most notable items have been reserved for the live auction on Sunday, March 23," they note — including the Internet Hall of Fame medal awarded to FSF founder Richard Stallman in 2013 "as ultimate recognition of free software's immense impact on the development and advancement of the Internet."

Long-time Slashdot reader chicksdaddy writes: A group of U.S. consumer advocacy groups on Wednesday proposed legislation to address the growing epidemic of "zombie" Internet of Things (IoT) devices that have had software support cut off by their manufacturer, Fight To Repair News reports.

The Connected Consumer Product End of Life Disclosure Act is a collaboration between Consumer Reports, US PIRG, the Secure Resilient Future Foundation (SRFF) and the Center for Democracy and Technology. It requires manufacturers of connected consumer products to disclose for how long they will provide technical support, security updates, or bug fixes for the software and hardware that are necessary for the product to operate securely.
The groups proposed legal requirements that manufacturers "must notify consumers when their devices are nearing the end of life and provide guidance on how to handle the device's end of life," while end-of-life notifications "must include details about features that will be lost, and potential vulnerabilities and security risks that may arise." And when an ISP-provided device (like a router) reaches its end of life, the ISP must remove them.

"The organizations are working with legislators at the state and federal level to get the model legislation introduced," according to Fight To Repair News.

Long-time Slashdot reader theodp writes: Wall Street Journal K-12 education reporter Matt Barnum has a heads-up for parents: There's a Good Chance Your Kid Uses AI to Cheat. Barnum writes:

"A high-school senior from New Jersey doesn't want the world to know that she cheated her way through English, math and history classes last year. Yet her experience, which the 17-year-old told The Wall Street Journal with her parent's permission, shows how generative AI has rooted in America's education system, allowing a generation of students to outsource their schoolwork to software with access to the world's knowledge. [...] The New Jersey student told the Journal why she used AI for dozens of assignments last year: Work was boring or difficult. She wanted a better grade. A few times, she procrastinated and ran out of time to complete assignments. The student turned to OpenAI's ChatGPT and Google's Gemini, to help spawn ideas and review concepts, which many teachers allow. More often, though, AI completed her work. Gemini solved math homework problems, she said, and aced a take-home test. ChatGPT did calculations for a science lab. It produced a tricky section of a history term paper, which she rewrote to avoid detection. The student was caught only once."

Not surprisingly, AI companies play up the idea that AI will radically improve learning, while educators are more skeptical. "This is a gigantic public experiment that no one has asked for," said Marc Watkins, assistant director of academic innovation at the University of Mississippi.

After Meta convinced an arbitrator to temporarily prevent a whistleblower from promoting their book about the company (titled: Careless People), the book climbed to the top of Amazon's best-seller list. And the book's publisher Macmillan released a defiant statement that "The arbitration order has no impact on Macmillan... We will absolutely continue to support and promote it." (They added that they were "appalled by Meta's tactics to silence our author through the use of a non-disparagement clause in a severance agreement.")

Saturday the controversy was even covered by Rolling Stone: [Whistleblower Sarah] Wynn-Williams is a diplomat, policy expert, and international lawyer, with previous roles including serving as the Chief Negotiator for the United Nations on biosafety liability, according to her bio on the World Economic Forum...

Since the book's announcement, Meta has forcefully responded to the book's allegations in a statement... "Eight years ago, Sarah Wynn-Williams was fired for poor performance and toxic behavior, and an investigation at the time determined she made misleading and unfounded allegations of harassment. Since then, she has been paid by anti-Facebook activists and this is simply a continuation of that work. Whistleblower status protects communications to the government, not disgruntled activists trying to sell books."
But the negative coverage continues, with the Observer Sunday highlighting it as their Book of the Week. "This account of working life at Mark Zuckerberg's tech giant organisation describes a 'diabolical cult' able to swing elections and profit at the expense of the world's vulnerable..."

Though ironically Wynn-Williams started their career with optimism about Facebook's role in the app internet.org. . "Upon witnessing how the nascent Facebook kept Kiwis connected in the aftermath of the 2011 Christchurch earthquake, she believed that Mark Zuckerberg's company could make a difference — but in a good way — to social bonds, and that she could be part of that utopian project...

What internet.org involves for countries that adopt it is a Facebook-controlled monopoly of access to the internet, whereby to get online at all you have to log in to a Facebook account. When the scales fall from Wynn-Williams's eyes she realises there is nothing morally worthwhile in Zuckerberg's initiative, nothing empowering to the most deprived of global citizens, but rather his tool involves "delivering a crap version of the internet to two-thirds of the world". But Facebook's impact in the developing world proves worse than crap. In Myanmar, as Wynn-Williams recounts at the end of the book, Facebook facilitated the military junta to post hate speech, thereby fomenting sexual violence and attempted genocide of the country's Muslim minority. "Myanmar," she writes with a lapsed believer's rue, "would have been a better place if Facebook had not arrived." And what is true of Myanmar, you can't help but reflect, applies globally...
"Myanmar is where Wynn-Williams thinks the 'carelessness' of Facebook is most egregious," writes the Sunday Times: In 2018, UN human rights experts said Facebook had helped spread hate speech against Rohingya Muslims, about 25,000 of whom were slaughtered by the Burmese military and nationalists. Facebook is so ubiquitous in Myanmar, Wynn-Williams points out, that people think it is the entire internet. "It's no surprise that the worst outcome happened in the place that had the most extreme take-up of Facebook." Meta admits it was "too slow to act" on abuse in its Myanmar services....

After Wynn-Williams left Facebook, she worked on an international AI initiative, and says she wants the world to learn from the mistakes we made with social media, so that we fare better in the next technological revolution. "AI is being integrated into weapons," she explains. "We can't just blindly wander into this next era. You think social media has turned out with some issues? This is on another level."

"The number of discrete GPU developers from the U.S. and Western Europe shrank to three companies in 2025," notes Tom's Hardware, "from around 10 in 2000." (Nvidia, AMD, and Intel...) No company in the recent years — at least outside of China — was bold enough to engage into competition against these three contenders, so the very emergence of Bolt Graphics seems like a breakthrough. However, the major focuses of Bolt's Zeus are high-quality rendering for movie and scientific industries as well as high-performance supercomputer simulations. If Zeus delivers on its promises, it could establish itself as a serious alternative for scientific computing, path tracing, and offline rendering. But without strong software support, it risks struggling against dominant market leaders.
This week the Sunnyvale, California-based startup introduced its Zeus GPU platform designed for gaming, rendering, and supercomputer simulations, according to the article. "The company says that its Zeus GPU not only supports features like upgradeable memory and built-in Ethernet interfaces, but it can also beat Nvidia's GeForce RTX 5090 by around 10 times in path tracing workloads, according to slide published by technology news site ServeTheHome." There is one catch: Zeus can only beat the RTX 5090 GPU in path tracing and FP64 compute workloads. It's not clear how well it will handle traditional rendering techniques, as that was less of a focus. In speaking with Bolt Graphics, the card does support rasterization, but there was less emphasis on that aspect of the GPU, and it may struggle to compete with the best graphics cards when it comes to gaming. And when it comes to data center options like Nvidia's Blackwell B200, it's an entirely different matter.

Unlike GPUs from AMD, Intel, and Nvidia that rely on proprietary instruction set architectures, Bolt's Zeus relies on the open-source RISC-V ISA, according to the published slides. The Zeus core relies on an open-source out-of-order general-purpose RVA23 scalar core mated with FP64 ALUs and the RVV 1.0 (RISC-V Vector Extension Version 1.0) that can handle 8-bit, 16-bit, 32-bit, and 64-bit data types as well as Bolt's additional proprietary extensions designed for acceleration of scientific workloads... Like many processors these days, Zeus relies on a multi-chiplet design... Unlike high-end GPUs that prioritize bandwidth, Bolt is evidently focusing on greater memory size to handle larger datasets for rendering and simulations. Also, built-in 400GbE and 800GbE ports to enable faster data transfer across networked GPUs indicates the data center focus of Zeus.

High-quality rendering, real-time path tracing, and compute are key focus areas for Zeus. As a result, even the entry-level Zeus 1c26-32 offers significantly higher FP64 compute performance than Nvidia's GeForce RTX 5090 — up to 5 TFLOPS vs. 1.6 TFLOPS — and considerably higher path tracing performance: 77 Gigarays vs. 32 Gigarays. Zeus also features a larger on-chip cache than Nvidia's flagship — up to 128MB vs. 96MB — and lower power consumption of 120W vs. 575W, making it more efficient for simulations, path tracing, and offline rendering. However, the RTX 5090 dominates in AI workloads with its 105 FP16 TFLOPS and 1,637 INT8 TFLOPS compared to the 10 FP16 TFLOPS and 614 INT8 TFLOPS offered by a single-chiplet Zeus...
The article emphasizes that Zeus "is only running in simulation right now... Bolt Graphics says that the first developer kits will be available in late 2025, with full production set for late 2026."

Thanks to long-time Slashdot reader arvn for sharing the news.

Slashdot reader rikfarrow summarizes an article they wrote for Usenix.org about the Open Source Python compiler Codon: In 2023 I tried out Codon. At the time I had difficulty compiling the scripts I most commonly used, but was excited by the prospect. Python is essentially single threaded and checks the shape (type) of each variable as it interprets scripts. Codon fixes types and compiles Python into compact, executable binaries that execute much faster.

Several things have changed with their latest release: I have successful compiles, the committers have added a compiled version of NumPy (high performance math algorithms), and changed their open source license to Apache 2.
"The other big news is that Exaloop, the company that is behind Codon, has changed their license to Apache 2..." according to the article, so "commercial use and derivations of Codon are now permitted without licensing."

The Washington Post reports: Oceans last year reached their highest levels in three decades — with the rate of global sea level rise increasing around 35% higher than expected, according to a NASA-led analysis published Thursday... Last year's rate of average global sea level rise was 0.23 inches per year, higher than the expected 0.17 inches per year, NASA said in a news release.

The rate of global sea level rise follows a trend of rapidly increasing rates over the past 30 years. From 1993 to 2023, the rate of global sea level rise doubled, increasing from 0.08 inches per year to 0.18 inches, another NASA-led study showed. Overall, the global sea level has climbed by 4 inches since 1993.
More details from ABC News: Climate change was a major driver to an unexpected level of sea level rise in 2024, according to a new NASA analysis... The majority of the difference between predicted and actual sea level rise was attributed to thermal expansion — or the ocean waters expanding as they warm, researchers said. An unusual amount of ocean warming, combined with meltwater from land-based ice such as glaciers, led to the increase of sea level rise last year, according to NASA.

About two-thirds of sea level rise in recent years has resulted from the melting of ice sheets and glaciers, with a third coming from thermal expansion, according to NASA. In 2024, those metrics flipped, with two-thirds of the rise attributed to expanding ocean water and one-third attributed to contributions from melting ice. "With 2024 as the warmest year on record, Earth's expanding oceans are following suit, reaching their highest levels in three decades," said Nadya Vinogradova Shiffer, head of physical oceanography programs and the Integrated Earth System Observatory at NASA... Human-amplified climate change is the primary cause for present-day rising sea levels, climate research shows.

"A new four-lane highway cutting through tens of thousands of acres of protected Amazon rainforest is being built for the COP30 climate summit," reports the BBC, "in the Brazilian city of Belém."

The highway will ease traffic into the city, which will host over 50,000 people at the conference this November: The state government touts the highway's "sustainable" credentials, but some locals and conservationists are outraged at the environmental impact... Along the partially built road, lush rainforest towers on either side — a reminder of what was once there. Logs are piled high in the cleared land which stretches more than 13km (8 miles) through the rainforest into Belém.

Diggers and machines carve through the forest floor, paving over wetland to surface the road which will cut through a protected area... The road leaves two disconnected areas of protected forest. Scientists are concerned it will fragment the ecosystem and disrupt the movement of wildlife...

The state government of Pará had touted the idea of this highway, known as Avenida Liberdade, as early as 2012, but it had repeatedly been shelved because of environmental concerns. Now a host of infrastructure projects have been resurrected or approved to prepare the city for the COP summit.
But on the bright side, Adler Silveira, the state government's infrastructure secretary, said the highway would have wildlife crossings for animals to pass over, as well as climate-friendly bike lanes and solar-powered lighting...

"Why can't we each have our own AI software that runs locally," asks long-time Slashdot reader BrendaEM — and that doesn't steal the work of others.

Imagine a powerful-but-locally-hosted LLM that "doesn't spy... and no one else owns it." We download it, from souce-code if you like, install it, if we want. And it assists: us... No one gate-keeps it. It's not out to get us...

And this is important: because no one owns it, the AI software is ours and leaks no data anywhere — to no one, no company, for no political nor financial purpose. No one profits — but you!
Their longer original submission also asks a series of related questions — like why can't we have software without AI? (Along with "Why is AMD stamping AI on local-processors?" and "Should AI be crowned the ultimate hype?") But this question seems to be at the heart of their concern. "What future will anyone have if anything they really wanted to do — could be mimicked and sold by the ill-gotten work of others...?"

"Could local, open-source, AI software be the only answer to dishearten billionaire companies from taking and selling back to their customers — everything we have done? Could we not...instead — steal their dream?!"

Share your own thoughts and answers in the comments. Where are the open-source, local-only AI solutions?

Long-time Slashdot reader BenFenner writes: For the third time in recent memory, CloudFlare has blocked large swaths of niche browsers and their users from accessing web sites that CloudFlare gate-keeps. In the past these issues have been resolved quickly (within a week) and apologies issued with promises to do better. (See 2024-03-11, 2024-07-08, and 2025-01-30.)

This time around it has been over six weeks and CloudFlare has been unable or unwilling to fix the problem on their end, effectively stalling any progress on the matter with various tactics including asking browser developers to sign overarching NDAs.
That last link is an update posted today by Pale Moon's main developer: Our current situation remains unchanged: CloudFlare is still blocking our access to websites through the challenges, and the captcha/turnstile continues to hang the browser until our watchdog terminates the hung script after which it reloads and hangs again after a short pause (but allowing users to close the tab in that pause, at least). To say that this upsets me is an understatement. Other than deliberate intent or absolute incompetence, I see no reason for this to endure. Neither of those options are very flattering for CloudFlare.

I wish I had better news.
In a comment, Slashdot reader BenFenner shares a list posted by Pale Moon's developer of reportedly affected browsers:

• Pale Moon
• Basilisk
• Waterfox
• Falkon
• SeaMonkey
• Various Firefox ESR flavors
• Thorium (on some systems)
• Ungoogled Chromium
• K-Meleon
• LibreWolf
• MyPal 68
• Otter browser

Slashdot reader Z00L00K speculates that "this is some kind of anti-bot measure that fails. I suspect that the reason for them wanting a NDA to be signed is to prevent ways to circumvent the anti-bot measures..."

Cities in Europe "are dramatically scaling back their relationship with the car," reports the Washington Post: They are removing parking spaces and creating dedicated bike lanes. They are installing cameras at the perimeter of urban centers and either charging the most-polluting vehicles or preventing them from entering. Some are going so far as to put entire neighborhoods off-limits to vehicles. In Norway, Oslo promotes "car-free livability." Paris Mayor Anne Hidalgo touts the "end of car dependence." And while those ideas might sound radical to car-loving Americans, they are fast becoming the norm across the Atlantic, where 340 European cities and towns — home to more than 150 million people — have implemented some kind of restrictions on personal car usage...

[V]irtually every major European city is imposing some kind of rule. Milan has a system similar to New York's, charging for access to the city core — while entirely banning older, highly polluting vehicles. London charges vehicles that don't meet emissions standards, in what it calls the "largest clean-air zone in the world." The programs are not just the purview of liberal Western Europe: Warsaw, Poland, and Sofia, Bulgaria, recently adopted similar schemes. Even little Italian villages have added vehicle restrictions to reinforce their historic feel. And the Netherlands just broke ground on a 12,000-person neighborhood that will be entirely car-free. The neighborhood, known as Merwede, will be connected by public transport to Utrecht, a medium-size city that — perhaps no surprise — has a low-emissions zone of its own...

Perhaps the most elaborate and transformative effort has come in Paris, where Anne Hidalgo was elected mayor in 2014. Since then, Paris has banned the most-polluting vehicles from the city, eliminated 50,000 parking spaces and added hundreds of miles of bike lanes. It turned a bank of the Seine from a busy artery into a pedestrian zone, and closed off the famed Rue de Rivoli to traffic... Journeys by car in Paris have dropped by about 45 percent since 1990. The city has now become a source for striking before-and-after photos: of clogged streets that have transitioned into tree-lined areas where people can walk and play.
In London government officials say inhalable particular matter has fallen, according to the article, while combustion-produced nitrogen dioxide "is 53% lower than it would have been without the restrictions."