Feed aggregator

Building trust in governments through digital platforms

MIT Latest News - Thu, 10/15/2026 - 9:45am

Around the world, many people report distrusting their government. In some places, such as Latin America, North America, and Africa, trust in government has declined in recent decades. How can governments rebuild this trust?

New research from the MIT Governance Lab and the behavioral science research organization Busara examines how government partnerships with trusted private organizations can shape public trust in government. In Kenya, county governments have worked with a telecommunications company to develop an online public service portal. A survey of people in and around the capital city of Nairobi found that highlighting the role of the company increased people’s willingness to use the portal, but hurt their trust in government. 

The results of this work, published in the September issue of the journal Government Information Quarterly, can help researchers understand how government digitization projects and relationships with technology companies affect public trust.

Trust in government and online public services

Studies have suggested that without public trust in government, people are less likely to follow rules and laws, and governments have a harder time solving problems that require public cooperation. Research has linked low levels of trust to people not paying taxes, lower voter turnout, lower Covid-19 vaccination rates, and higher Covid-19 infection rates.

In Kenya, a 2023 survey found that only 43 percent of people trusted the government. Corruption, poor service delivery, and flawed elections have likely hurt public trust. The Kenyan government is also a pioneer in digital technology for governance. Mobile money is widely used, and a centralized service delivery platform called eCitizen has made thousands of digitized services available to citizens. Such digital services can allow governments to serve people more efficiently and, if executed well, can build trust in government competency.

Does who gets credit for making a digital tool impact people’s trust?

Recently, Kenya’s 47 county governments partnered with Safaricom, a highly trusted telecommunications company, to create an online portal called My County Hub. The portal aims to allow people to request government emergency services, pay for business permits and parking, receive information from the government, and more.

In the new study, researchers told the more than 11,000 online survey participants how they could access My County Hub and some of the services it would offer. Some people were told the county government and Safaricom were both responsible for the portal, while others were told the government alone or the company alone was responsible. The survey also asked people about their trust in the county government before and after they received this information. The researchers hypothesized that people who were told the partnership was a public-private collaboration would have more trust at the end of the survey, with people’s trust in Safaricom transferring to the government partner.

Overall, people expressed more trust in government after being told about My County Hub, suggesting that digitization itself could be tied to increasing trust. However, trust did not seem to transfer from Safaricom to the government: people who were told about the partnership did not come to trust the government more than those who were told that the government alone was responsible. Trust sometimes transfers in settings where people don’t have strong beliefs about the untrusted group. But people tend to have strong beliefs about government, which could make it harder to sway their opinions.

Crediting the company could hurt people’s relationship with government

People who were told Safaricom alone was responsible for the portal expressed a greater willingness to use the portal and more interest in learning more about it. But relative to people who were told the government alone made the portal, the people in the Safaricom group had lower levels of trust in government afterwards. This could be because people viewed Safaricom as doing the work of the government, which could lower their faith in the government’s competency. 

The results suggest that while emphasizing the role companies play in developing digital services could encourage people to use these services in the short term, it could also erode people’s confidence in the government in the long term. People with higher trust in government were also more willing to use My County Hub in the future, so long-term trust in government could be important for service provision.

The researchers also noticed that people told about the partnership did see their trust in government increase if they had high levels of trust in the government and Safaricom at the start of the survey. And the decreased trust in government in the Safaricom group was driven by people who trusted Safaricom but distrusted the government at the start. 

These findings are in line with prior research showing that preexisting trust levels influence how trust changes during digitization efforts. In the future, research on people who distrust the government could look at other strategies for building trust through digital services.

The study’s authors include Lily L. Tsai, Ford Professor of Political Science and the director and founder of the MIT Governance Lab, and MIT Governance Lab Research Director Lula Chen.

Q&A: The “collision” between AI, your brain, and society

MIT Latest News - Thu, 10/15/2026 - 12:00am

As artificial intelligence use becomes more widespread, scholars are working to understand its effects on the people who use it. MIT Professor Eric So offers one of the most complete syntheses yet, in his new book, “The Collision: What AI Does to Us,” published this month by W.W. Norton. Recognizing that AI offers opportunities to complete work faster, and in some cases has been turned into useful domain-specific tools, So nonetheless looks at the costs of relying on it too broadly. He contends that heavy use of AI can lead to a kind of cognitive atrophy, in which people fail to develop and retain essential thinking skills. In general, he says, evidence shows that our ability to learn gets dramatically better when we wrestle with material, work through initial failures, keep iterating, and in the process acquire better thinking skills while retaining more knowledge. 

These conclusions are drawn from recent research by So and others, in academia and industry, including analysis from AI firms themselves, such as an Anthropic study showing that about half of queries from college students were low-effort queries for simple answers. So also weaves personal reflections into his narrative — having long studied financial markets and behavior, he is familiar with analyzing how new tools and information affect our decisions. MIT News talked to So, who is the Sloan Distinguished Professor of Global Economics and Behavioral Science in the MIT Sloan School of Management, about the book. 

Q: What prompted you to write “The Collision”?   

A: I wrote this book in response to patterns I was seeing in myself and other individuals. I open the book with this story where I was instinctively reaching for AI to help me think through problems I normally would have handled myself. A colleague had reached out for assistance and I had essentially taken her question and written half a sentence, then said, “ChatGPT, help me finish this professionally.” I made a few light edits and sent it off. And I sat back and really felt incredibly concerned about how I had removed my own thinking from the process.

I have found students are outsourcing their thinking to AI, rather than thinking through things themselves, turning to it to answer homework that would normally help them build mastery in a subject. We need to start understanding what this technology is doing to us and how it interacts with human cognition and our psychology, and give people some practical insights. 

Q: Part of that means understanding the incentives people have to use AI, or how the allure of AI takes hold, even when there are long-term costs, in your view. 

A: There are converging factors drawing us to AI. For example we have a real biological instinct to conserve our mental energy, and socially, we face situations where AI is used by other people to race ahead, and it rachets up the pressure on everyone else to use AI. Combine that with the problems detecting AI use in a practical way, and all these factors create what I call “AI gravity,” this constant pull to use AI. It’s not simply a matter of telling people to think for themselves. At this moment we’re in, AI is colliding with society.

Q: So we need to look at these systemic factors, not just individual decisions, when it comes to AI use, like businesses urging employees to use it. 

A: Many organizations are not just suggesting use of AI: It is now the basis of your evaluation, meaning if you want a bonus or promotion, it is incumbent upon you to use these tools. I think a subtle process is taking hold in academia, where people say, “My future employer will want me to use AI, so I’d better start using it now.” But the problem is that as you start to use AI now, we’re losing touch with the practices and capabilities we’re seeking to build, and in turn that makes us more dependent on using AI in the future, and it becomes a self-fulfilling prophecy.

Q: What is AI doing to our minds? 

A: AI is not just changing what we can do, it’s changing who we are as thinkers. AI removes a lot of the friction necessary to build foundational mastery. It is causing many people to lose their capacity for pushing through problems. AI offers instant relief, and we become accustomed to that. Many people are turning to it as an access point for information, so it’s affecting our ability to remember. Also, AI is changing our interpersonal relationships. A key point in the book is that these models are simultaneously sycophantic, meaning they want to make us happy because that’s how they drive engagement and get positive feedback, but they are also really persuasive. We lose the ability to connect with other people because we’re so accustomed to this frictionless environment where the models always agree with us.

Q: Your book emphasizes the value of “productive struggle.” You write, “Struggle doesn’t mean you’re suffering.” Instead, we get a handle on things by struggling to learn them. 

A: We need to recast how we think about struggle, as something that is formative rather than a problem to be solved. I draw a lot of parallels in the book between some of the societal changes that occurred post-industrialization, when suddenly people no longer needed to be physically active to be economically productive. We saw more people suddenly develop physical exercise as something we do intentionally, that required reframing of what physical struggle meant. And I think we need that sort of shift about what we think about cognitive struggle. 

Q: Given all this, what can we do to maintain some reasonable level of cognitive effort today?

A: At the personal level, I emphasize four principles for navigating this age of AI. One is embracing the struggle, as we’ve talked about. The second rule is: Value who you are without AI. I’ve seen so many presentations over the last couple of years where someone has put together this very polished-looking presentation with Claude, but when they present it, it’s clear they didn’t put in the work necessary to understand the material. The formative struggle creates what I refer to as an “inseparable task bundle,” since making the slides allows me to engage in substantive discussion. In the absence of valuing who you are without AI, we get the product, but not the ability to capitalize on it.

The third rule is about reinvesting your cognitive surplus. There are a lot of tasks for which AI can save you time — rote activities — but it matters what you do with those time savings. If you’re just funneling the same energy into the same tasks, you’re missing out on the potential transformational benefits of AI. The most innovative changes are not the ones that simply allow us to automate, but stretch the capabilities of  humanity in a productive way and build expertise. Or, people can channel that freed-up time to focus on family, learn a new language, cultivate skills. 

The last rule is about using AI as your cognitive trainer. AI is this dual force, where it is very bad for thinking if you use it as an answer machine, but can be great for learning if you use it as a tutor. AI can be tailored to you. However, it requires that you seek out the friction of having a tutor, relative to having an answer machine. And that requires motivation. 

This is a very challenging moment, and the problem is one we need to take seriously. 

Combining climate policy instruments for a just transition to a climate-neutral economy

Nature Climate Change - Thu, 10/15/2026 - 12:00am

Nature Climate Change, Published online: 15 October 2026; doi:10.1038/s41558-026-02757-z

A distributional analysis of European Union climate policy pathways traces the costs of reducing carbon dioxide emissions to the level of households based on their spending and income patterns. We find that different equity considerations, including income inequality and within-group impact divergence, can shape optimal climate policy design with carbon prices, transfers, standards and subsidies.

Warming oceans hit the battlefield

Nature Climate Change - Thu, 10/15/2026 - 12:00am

Nature Climate Change, Published online: 15 October 2026; doi:10.1038/s41558-026-02782-y

Marine radar signal propagation is highly sensitive to fine-scale vertical changes in water vapour. Now research shows that long-term increases in sea surface temperatures are strengthening the frequency and intensity of the features that allow radar signals to travel further than expected.

Warming-driven lower-tropospheric stratification intensifies ducting over global oceans

Nature Climate Change - Thu, 10/15/2026 - 12:00am

Nature Climate Change, Published online: 15 October 2026; doi:10.1038/s41558-026-02774-y

Atmospheric ducts are waveguides that affect electromagnetic propagation in the atmosphere, affecting radar and other technologies. Here the authors show that warming intensifies such ducting over mid- to low-latitude oceans.

High wind speed reduces water use efficiency across terrestrial ecosystems

Nature Climate Change - Thu, 10/15/2026 - 12:00am

Nature Climate Change, Published online: 15 October 2026; doi:10.1038/s41558-026-02781-z

The role of wind in ecosystem water use efficiency remains unclear. The authors show that water use efficiency declines with increasing wind speed, driven mainly by increases in evapotranspiration and secondarily by reductions in gross primary productivity.

Prioritizing demand-side use of clean hydrogen for cost-effective mitigation

Nature Climate Change - Thu, 10/15/2026 - 12:00am

Nature Climate Change, Published online: 15 October 2026; doi:10.1038/s41558-026-02763-1

Clean hydrogen is widely proposed for hard-to-abate sector decarbonization, but its limited supply requires prioritizing sectors with the highest value. This study evaluates ten sectors and identifies key no-regret uses, while highlighting the need for specific demand-side policies.

We’re Asking the Wisconsin Supreme Court to End Warrantless ALPR Searches

EFF: Updates - Wed, 10/14/2026 - 7:21pm

Today, EFF joined the ACLU of Wisconsin in filing a petition to the Wisconsin Supreme Court, asking it to rule that the state’s constitution requires a warrant for retrospective searches of ALPR databases used by law enforcement in four cities: Milwaukee, Racine, Kenosha, and Green Bay. We represent a religious organization, the Wisconsin Council of Churches, as well as an individual pastor in Green Bay.

As the petition explains:

Right now, Automated License Plate Readers (“ALPRs”) are recording the movements of vast numbers of Wisconsin drivers as they seek medical care, attend 12-step recovery meetings, attend religious services, participate in protests, attend political meetings, and engage in many other private, sensitive activities. Law enforcement entities throughout Wisconsin collect, store, share, and aggregate this ALPR data. Then they search it, retrospectively tracking the movements of individuals and entire communities in ways that would have been prohibitively costly, if not outright impossible, before the advent of ALPR technology.

We all deserve to be free of warrantless mass surveillance. We all deserve to live in a country where surveillance vendors cannot help police upend our system of individualized suspicion. Religious organizations and officials like our clients have a heightened interest in protecting their location privacy because of the range of expressive associations their work entails, including facilitating gatherings for religious worship, as well as offering pastoral care, confidential counseling, and community support. Likewise, the people who visit houses of worship have a strong right to privacy against police monitoring of when they pray, seek addiction counseling, or attend a domestic violence survivor meeting.

This is our second lawsuit challenging warrantless ALPR searches, following SIREN v. San Jose. Earlier this month, a federal court in Oklahoma became the first to rule that ALPRs are a “type of indiscriminate mass surveillance” and suppress evidence from a warrantless ALPR search. We hope the Wisconsin Supreme Court will agree.

Read the Wisconsin Supreme Court petition

Read the press release

Related Cases: Wisconsin Council of Churches v. Milwaukee, Racine, Kenosha & Green Bay

DHS Inspector General Finds That TSA is Not Properly Safeguarding Passenger Facial Recognition Data

EFF: Updates - Wed, 10/14/2026 - 4:27pm

EFF legal intern Gabrielle Ladun was the principal author of this post. 

The Department of Homeland Security Office of Inspector General (DHS OIG) has published a summary of findings from its audit of the Transportation Security Administration’s (TSA) facial recognition technology. While the detailed findings are classified, the summary states that the OIG’s audit uncovered a “significant weakness” in the technology’s ability to protect the privacy of passenger data. This has massive privacy implications for the millions of passengers who travel and don’t opt out of the TSA’s biometric surveillance technology verification process. 

TSA uses facial comparison technology for identity verification of airline passengers. A camera takes a photo of passengers to verify that their provided identification matches their live photo. Although TSA states that it is “committed to protecting traveler privacy,” the audit highlights that this has not been the case.  

The OIG found that TSA’s Credential Authentication Technology 2’s (CAT-2) vendor “was able to access and extract sensitive passenger information, including driver’s license and passport images, during system troubleshooting and enhancements, without TSA’s knowledge.”  

The OIG further admonished the agency:  

TSA lacked clear policies, did not track when this data was extracted, could not verify that extracted information was properly deleted, and did not notify passengers when their biometric and biographic information may have been stored. As a result, although passenger information was generally protected during routine operations, weaknesses in vendor oversight created a risk that sensitive personal information could be retained or exposed. 

We hope the TSA will fix these issues. The OIG summary states: 

We issued one finding and three recommendations to strengthen controls, improve oversight, and ensure transparency and the proper handling of passenger data. TSA concurred with all three recommendations. Two recommendations are open and resolved, and one remains open and unresolved. 

Why EFF Opposes the Government’s Use of Facial Recognition Technology 

EFF has a long history of opposing governmental use of facial recognition technology. As the OIG’s audit underscores, this technology presents privacy risks associated with unsecured data, unauthorized access, and data breaches. The government’s use of this technology also creates a mass surveillance system and facilitates the creation of warrantless biometric records for unconsenting parties.  

The biometric data captured by this technology is not without errors. There have been multiple instances of law enforcement agencies using facial recognition technology to misidentify and arrest innocent individuals.  

Reminder: Opting Out of TSA Photos Is Possible 

Given that facial recognition technology is prone to mistakes, combined with the OIG’s audit revealing significant privacy weaknesses, it is imperative that travelers remember that opting out is possible. TSA’s own website emphasizes that travelers who wish to decline to have their photo taken for facial comparison can do so without any delay, disruption, or recourse.  

Considering the data protection weaknesses exposed by the OIG’s audit, EFF will continue to oppose this governmental system of mass surveillance and spread awareness to ensure that no one is forced to relinquish their biometric data without consent. 

MIT remembers Thomas Rose, a brilliant researcher and generous colleague

MIT Latest News - Wed, 10/14/2026 - 2:30pm

More than 100 people filled the MIT Chapel on Sept. 24 to pay tribute to Assistant Professor Thomas Rose, the MIT archaeometallurgist who died last month following a bicycle crash in Cambridge, Massachusetts.

Faculty, students, and staff affiliated with the Department of Materials Science and Engineering (DMSE) and the Center for Materials Research in Archaeology and Ethnology (CMRAE), along with family and friends, gathered for a memorial service where colleagues spoke about the 37-year-old, who joined the DMSE faculty in January and had just started building a research program at MIT. They remembered him as a brilliant researcher and generous colleague with an extraordinary breadth of expertise and eclectic passions ranging from rowing to archery. 

A portrait of Rose sat on an easel next to the chapel’s flower-covered altar. A cellist played as guests entered and took their seats.

Chaplain to the Institute Thea Keith-Lucas opened the service by reflecting on the loss felt across MIT. 

“We honor the unique gifts that he brought to this world. We honor the ways that he was growing, and the possibilities that were cut short. We honor the small, unseen moments of courage and connection that create a life,” she said.

Finding a unicorn

To give a sense of what Rose meant to DMSE, department head Polina Anikeeva briefly explained archaeometallurgy — the study of how ancient societies produced and used metals — and its development at MIT, beginning in the 1960s. The field flourished after the establishment of CMRAE in the 1970s, but over the following decades it began to contract in the United States, and MIT had difficulty finding people with an increasingly rare set of skills. 

“We were looking for a unicorn. We were looking for two decades,” Anikeeva said. When Anikeeva and other DMSE faculty reviewed Rose’s resume in 2025, they were impressed by his unique training in geoscience, metallurgy, and archaeology and met him soon after. “We saw a brilliant, creative colleague — unassuming, intellectually fearless, adaptable, resourceful, and eagerly looking into the future.”

Mike Tarkanian, senior lecturer in DMSE and associate director for CMRAE, described the Zoom interview with Rose that kicked off the faculty search. Rose spoke fluently about his work, interests, and research vision — without the slides or notes that candidates typically rely on.

“I hung on every word — but it was so unusual and so risky that I wasn’t sure how it would be received,” Tarkanian said. “As soon as the call ended, my phone rang and it was a colleague who was also on the Zoom and he said, ‘That’s our guy. That has to be our guy.’”

Anikeeva also spoke of the enthusiasm he brought with him every day at MIT, noting his “almost childlike curiosity and his enormous positivity.”

“There were no obstacles, only opportunities and possibilities.”

To honor Rose and carry forward the work he had begun at MIT, Anikeeva said DMSE would launch the Thomas Rose Fellowship for Excellence in Archaeometallurgy, dedicated to supporting the most promising young scholars at the PhD and postdoctoral levels, “so that we can continue this field for the world and for the U.S. and for the memory of Thomas.”

A generous spirit

Speakers also remembered Rose’s kindness, generosity, and empathy toward everyone around him. Tarkanian stressed Rose’s commitment to community and helping others, noting his contributions to research tools used by archaeologists worldwide. He gave an example from Rose’s undergraduate years in his native Germany, when he gave tutorials for first-year archaeological science students who were struggling with chemistry and math. A former student told Tarkanian that an email Rose sent inviting students to the tutorial ended with, “I guess I’ll be more nervous than you folks tomorrow.”

“This was the Thomas we only started to get to know,” Tarkanian said, “someone who offered his expertise to others in need without question, while being thoughtful enough to worry out loud that he might be the nervous one and, by doing so, putting others at ease.”

DMSE Assistant Professor Tania Lopez-Silva, who started at MIT six months before Rose, recalled his patience and understanding. When she arranged a lunch with him, he said he would eat anything but mushrooms and eggplant.

“Somehow I misunderstood him, and I chose the place that probably has the most mushroom and eggplant options possible,” Lopez-Silva said. “He said that he still wanted to try the place, and he would find something to eat. That was Thomas — kind, patient, open-minded, and always willing to make the best of things.”

That quality came through in a story by another DMSE faculty member, Assistant Professor Thomas J. Wallin, who recalled a photo Rose had sent him of the apartment he had found overlooking the Charles River. Wallin was impressed, but Rose said with characteristic directness that it was quite small, but “very long and narrow” — which turned out to be a good thing. 

“He explained that because it was narrow, he could stand at the edge of his balcony and shoot at his archery target through his hallway, past his kitchen, at his door, and it would be the proper distance,” Wallin said, drawing chuckles in the chapel. “I don’t think that’s a request many Boston realtors get, but that was Thomas.”

Rose’s connections also extended beyond DMSE. Katya Tiukhtikova, joined by fellow MIT Archery Club member Kiarra Ning, remembered how Rose treated others. 

“He only focused on the good in people, and gave everyone a chance to show the best parts of themselves,” Tiukhtikova said.

She also recalled the contagious excitement Rose brought to archery practice, saying he “always brightened the days of everyone who was lucky enough to share the archery range with him.”

Tarkanian ended his remarks with a reflection on academic life and the importance of generosity and humility alongside brilliance and achievement.

“If part of Thomas’s legacy here at MIT is that we become a little more generous with our time, a little more humble about our accomplishments, and a little more deliberate about building communities in which other people can thrive and grow, that would be a legacy worthy of him.”

🗣 A Victory for Freedom of Speech Online | EFFector 38.18

EFF: Updates - Wed, 10/14/2026 - 12:25pm

No one should have to think twice before criticizing the government online. But a mass surveillance program known as "Catch and Revoke" was created to make millions do just that. EFF and other defenders of free speech are fighting back. In our latest EFFector newsletter, we're talking about a key court win for our lawsuit challenging this unconstitutional surveillance program.

JOIN OUR NEWSLETTER

For over 35 years, EFFector has been your guide to understanding the intersection of technology, civil liberties, and the law. This issue covers our Opt Out October guides for ditching Big Tech, a win in the fight against anti-VPN laws, and a court ruling allowing the lawsuit against "Catch and Revoke" to move forward.

Prefer to listen in? EFFector is now available on all major podcast platforms. This time we're talking to EFF's Lisa Femia about how the government is using AI to suppress protected speech online—and the important lawsuit she and others are working on to stop it. You can find the episode and subscribe on your podcast platform of choice:

%3Ciframe%20height%3D%22200px%22%20width%3D%22100%25%22%20frameborder%3D%22no%22%20scrolling%3D%22no%22%20seamless%3D%22%22%20src%3D%22https%3A%2F%2Fplayer.simplecast.com%2F1f21c2ee-32ed-41ab-b0a8-eb86edda26ed%3Fdark%3Dfalse%22%20allow%3D%22autoplay%22%3E%3C%2Fiframe%3E Privacy info. This embed will serve content from simplecast.com

   

Want to protect your right to digital privacy? Sign up for EFF's EFFector newsletter for updates, ways to take action, and new merch drops. You can also fuel the fight for privacy and free speech online when you support EFF today!

Upcoming Speaking Engagements

Schneier on Security - Wed, 10/14/2026 - 12:02pm

This is a current list of where and when I am scheduled to speak:

  • I’m speaking at ATTENTION: Democracy, Rebuilt in Montreal, Canada. The event runs October 21–23, 2026, and my talk is on Wednesday, October 21.
  • I’m speaking at the University of Toronto in Toronto, Ontario, Canada, at 5 PM ET on October 22, 2026.
  • I’m speaking at [un]prompted in San Francisco, California. The event runs October 27–29, 2026, and my talk is at 11:35 AM PT on Thursday, October 29.
  • I’m speaking at the Catalyst Summit in Brampton, Ontario, Canada, on Wednesday, November 18, 2026...

Researchers improve weather forecasts looking two to six weeks out

MIT Latest News - Wed, 10/14/2026 - 11:00am

In 2021, Texas suffered the worst energy infrastructure failure in state history, following three severe winter storms in February. At least 246 people were killed as a result of the disruptions, which led to food, water, heat and electricity shortages.

If energy officials had had more time to prepare for the storms, for example by bringing in more trucks of natural gas to disrupted areas, damage from the event could have been mitigated. Unfortunately, weather forecasts beyond two weeks are notoriously unreliable, making for a tighter window for energy operators, farmers, and emergency response officials around the globe.

A new technique by a team including researchers at MIT significantly improves weather forecasting beyond two weeks. The researchers developed a machine-learning model that learns to correct errors in existing forecasting models to improve their output over the two-to-six-week time frame. When applied to a gold-standard forecasting model, it doubled forecasting accuracy over that time frame, placing first in a prominent international forecasting competition.

In a new paper in Nature, the researchers describe their approach and show how it enables forecasts that for the first time beat climatologic averages between two and six weeks.

“Not only does this do better on time averaged forecasts for this range, which is already very useful for farmers and members of the energy industry trying to match supply with demand, but it also improves predictions of extreme weather events, whether it’s flooding or cold spells or something else,” co-author and MIT Research Scientist Judah Cohen says. “It’s really important to predict both, but extreme events might be the most impactful part of this for society.” 

Joining Cohen on the paper are lead authors Hannah Guan, a Harvard College undergraduate; Soukayna Mouatadid, a University of Toronto postdoc; Genevieve Flaspohler SM ’18, PhD ’22; Paulo Orenstein, an associate professor at Brazil’s National Institute for Pure and Applied Mathematics; Jeremy Berman of the data company DTN; Jakob Schloer and Joshua Talib, researchers with the European Center for Medium-Range Weather Forecasts; and Alex Lu, Haiyu Dong, Jonathan Weyn, Zekun Ni, and Lester Mackey, all researchers at Microsoft.

Longer forecasts

In the 1970s, longtime MIT Professor Edward Lorenz came up with the idea of chaos theory to describe how tiny changes in initial weather conditions lead to completely different outcomes.

“He came up with this theoretical two-week limit where beyond that, we just can’t predict weather because the noise in the system grows so much that it overwhelms any signal you start with,” Cohen says. “That had a strong influence on the field that may have held people back from exploring forecasting beyond the two-week range. I never really believed that completely. In theory the atmosphere can create an infinite number of patterns, but it likes to fall into these favorite patterns over and over again. Once one thing happens, I think you can predict the domino that will fall after that, and the domino that will fall after that.”

Today, the best weather forecasts come from either dynamical models, which numerically simulate how the atmosphere and oceans evolve over time, or artificial intelligence models, which learn to make predictions from historical weather data. AI models have shown improvements in predicting weather at short ranges, but they’re even worse than dynamical models at longer time ranges.

Cohen, who is based in the MIT Department of Civil and Environmental Engineering, focuses on forecasting weather two to six weeks in advance, which is known as subseasonal forecasting. “That range is referred to as the ‘predictability desert,’ because in the short range you can capitalize on the initial conditions in the climate system and the atmosphere, and on the longer term you have these slow, varying boundary forces, like the super El Niño everyone’s focused on this winter,” Cohen says. “The subseasonal range can’t take advantage of either of those. In most cases forecasting in the subseasonal ranges is no different than going to a casino and rolling the dice.”

Cohen credits his co-author Lester Mackey, whom he has been collaborating with for more than a decade, with the initial idea of using machine learning to reduce errors in forecasting models.

“We built this wrapper — Lester calls it postprocessing,” Cohen says. “We know AI models have a lot of errors, so we thought maybe we can quantify those errors and remove them.”

While other forecasting systems do more simplistic error correction, the research team’s postprocessing layer uses AI to learn from a forecasting system’s mistakes based on historic data and shifts its forecasts. In that time range, forecasters use so-called probabilistic forecasts, where the likelihood of a range of possibilities if given.

“As more forecasts and data become available, our model adaptively improves its correction,” Cohen says.

To build the model, the researchers used MIT Engaging, a supercomputing cluster hosted by MIT’s Office of Research Computing and Data, but the resulting model does not require a supercomputer to run.

To put their model to the test, last year the research team submitted three models that included their post-processing layer to the European Center for Medium-Range Weather Forecasts (ECMWF), which is considered the best forecasting center in the world. Each season ECMWF holds forecasting competitions between models.

The submission that won first place combined ECMWF’s forecasting model with another, and then applied the postprocessing correction on top. That approach ended up doubling the original model’s predictive power in the subseasonal range. For the first time, the model offered an improvement over relying on climatologic averages.

“Up until now, no one had been able to show a model predicts weather better than long term averages for these subseasonal forecasts,” Cohen says. “They’ve pretty much all been worse than that — you could literally flip a coin and do better. People have questioned if it’s even worth investing in models at all for this time range. We consistently beat climatology averages with our models.”

The model also showed a statistically significant improvement in the ability to predict extreme weather.

“That’s one of the more important findings, because it’s so difficult to accomplish,” Cohen says. “When the ECMWF developed their own, non-AI, error-correction to their model, it got worse at predicting extreme weather. I think that’s because traditional error, or bias, correction is always trying to get to the mean, whereas extreme weather is on the fringe of probabilities.”

Preparing for disaster

In the Nature paper, the team showed their technique could be used to improve land forecasts in most regions across the globe. They also applied their bias correction technique to other models and showed it improved those as well, putting even lesser models on par with the ECMWF’s forecasts.

“What’s nice about our model is it’s an add-on wrapper,” Cohen explains. “We used it with the ECMWF’s dynamical model because that was considered the best, but it can be used with any model. It even improves models that are already bias corrected using another AI algorithm. So it shows a robust improvement. And it’s open source and low cost.”

Cohen says the meteorological office for the Republic of Kenya has already reached out about implementing the model to improve forecasting of the annual monsoon season to improve agricultural yields this winter. He hopes other groups will also use the model.

“This could help you decide when to fertilize around rain, when there’s a freeze coming to protect crops during winter harvests, or help you avoid droughts,” Cohen says. “It could also be useful for energy and emergency management. I’ve talked to energy officials who say, ‘If I’m told two days before that an ice storm’s coming, I don’t have enough time, but if I had two weeks, that could be enough to make adequate preparations.”

The work was supported, in part, by the U.S. National Science Foundation, the Carlos Chagas Filho Foundation for Research Support, and the European Union.

The Future of AI Cryptanalysis

Schneier on Security - Wed, 10/14/2026 - 10:24am

Matthew Green has been writing a rather pessimistic series of posts about the potential for AI systems to vastly outperform humans in cryptanalysis of both symmetric and public-key ciphers.

I am more optimistic than he is. That is, I have stronger faith in the over-engineering cryptographers tend to do. I am trying to write this up in more detail.

Cyberattack on Connected Fridges in France

Schneier on Security - Wed, 10/14/2026 - 10:10am

Another IoT cyberattack, this one in France:

Hackers gained control of the software that regulates the temperatures of the refrigeration units, forcing some to warm to 50C (120F) overnight, according to one supermarket chain affected.

[…]

Normally, supermarket freezers go through a short period of defrosting overnight, in which temperatures rise slightly. But the hackers ordered the units to heat up and stay hot, although Danfoss did not confirm any reports about just how warm the fridges and freezers could become in that process.

Danfoss said the affected cold units were older models whose security software could not be updated to ward off a risk they had identified...

The ambitions and limitations of climate assemblies

Nature Climate Change - Wed, 10/14/2026 - 12:00am

Nature Climate Change, Published online: 14 October 2026; doi:10.1038/s41558-026-02764-0

Climate citizens’ assemblies are gaining traction worldwide as a way to involve the public in climate governance. Now a study demonstrates that although these assemblies propose more ambitious recommendations than existing climate policy, these recommendations vary across contexts and have limited impact on policy decisions.

Strengthening Rio Convention implementation architecture through reciprocal learning

Nature Climate Change - Wed, 10/14/2026 - 12:00am

Nature Climate Change, Published online: 14 October 2026; doi:10.1038/s41558-026-02777-9

As the Rio Conventions mature from negotiating commitments towards delivering them, strengthening implementation has become an urgent priority. We argue for greater cross-convention learning within the context of institutional architecture to accelerate progress on climate, biodiversity and land degradation.

Species hybridization belongs on the climate change agenda

Nature Climate Change - Wed, 10/14/2026 - 12:00am

Nature Climate Change, Published online: 14 October 2026; doi:10.1038/s41558-026-02780-0

Species hybridization belongs on the climate change agenda

Citizens’ assemblies propose ambitious climate policy but impacts remain limited

Nature Climate Change - Wed, 10/14/2026 - 12:00am

Nature Climate Change, Published online: 14 October 2026; doi:10.1038/s41558-026-02755-1

Deliberative citizen participation, such as climate assemblies, has been promoted in climate governance. This study finds that, although assemblies proposed more ambitious recommendations than existing climate policy, these recommendations rarely translated into actual policy decisions.

Hiroshi Ishii honored for contributions to global design and human-computer interaction

MIT Latest News - Tue, 10/13/2026 - 5:10pm

Hiroshi Ishii, the Jerome B. Wiesner Professor of Media Arts and Sciences at MIT and associate director of the MIT Media Lab, recently received the 2026 Industrial Designers Society of America Special Achievement Award for “...pioneering work that has greatly influenced human-computer interaction and design.”

For over 30 years, Ishii has explored how the digital and physical worlds can merge more meaningfully. Working with students, MIT colleagues, and international collaborators through his Tangible Media group, Ishii has pursued research marked by intellectual tension and artistic vision. He and his collaborators have produced truly original concepts including Tangible User Interfaces, which are interactive systems where physical objects, rather than screens, mice, or keyboards, are used to control and interact with digital information; and Tangible Bits, introduced at CHI ‘97, which established how people engage with digital information through physical objects. His later concepts, Radical Atoms and TeleAbsence, inspire researchers and designers worldwide.

“Beyond his research, Ishii has made lasting contributions to the global design community through ACM CHI [the Association for Computing Machinery Conference on Human Factors in Computing Systems], TEI [conference on Tangible, Embedded and Embodied Interaction], and UIST [User Interface Software and Technology], and by mentoring generations of designers and researchers,” said Professor Leila Ensaniat in her Industrial Designers Society of America Awards committee chair introduction.

Ishii's approach shows how bringing the arts, science, engineering, and design together creates innovations with real-world applications. His models now influence product development across industries, shaping how millions of people interact with information and each other.

Pages