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The Brief

The most important stories for you to know today
  • Climate change has been affecting air quality
    The downtown skyline partially obscured by smoke from wildfires after sunset.
    A view of poor air quality stretching to downtown in Los Angeles.

    Topline:

    A new report finds that one in four people in the U.S. are breathing unhealthy air as rising temperatures and bigger fires create a "climate penalty."

    Why it matters: Though summertime pollution from wildfire smoke and ozone receives more attention, climate change is making winter inversions increasingly common — with troubling results. One in four Americans are now exposed to unhealthy air, according to a report by First Street Foundation.

    Read more ... for extra insight into the report's methodology, as well as perspectives from experts on the problems being put in the spotlight.

    A choking layer of pollution-laced fog settled over Minneapolis last month, blanketing the city in its worst air quality since 2005. A temperature inversion acted like a ceiling, trapping small particles emitted from sluggish engines and overworked heaters in a gauze that shrouded the skyline. That haze arrived amid the hottest winter on record for the Midwest. Warmer temperatures melted what little snow had fallen, releasing moisture that helped further trap pollution.

    This story was originally published by Grist. Sign up for Grist’s weekly newsletter here.

    Grist is a nonprofit, independent media organization dedicated to telling stories of climate solutions and a just future.

    Though summertime pollution from wildfire smoke and ozone receives more attention, climate change is making these kinds of winter inversions increasingly common — with troubling results. One in four Americans are now exposed to unhealthy air, according to a report by First Street Foundation.

    Jeremy Porter, head of climate implications research at the nonprofit climate research firm, calls this increase in air pollution a “climate penalty,” rolling back improvements made over four decades. On the West Coast, this inflection point was passed about 10 years ago; air quality across the region has consistently worsened since 2010. Now, a broader swath of the country is starting to see deteriorating conditions. During Canada’s boreal wildfires last summer, for example, millions of people from Chicago to New York experienced some of the worst air pollution in the world. It was a precedent-breaking spate that saw the average person exposed to more small particulate matter than at any time since tracking began in 2006.

    It’s a preview of more to come.

    Since Congress passed the Clean Air Act in 1970, federal law has regulated all sources of emissions, successfully reducing pollution. Between 1990 and 2017, the number of particles smaller than 2.5 micrometers, known as PM2.5, fell 41 percent. These particulates pose a significant threat because they can burrow into the lungs and enter the bloodstream. Exposure can cause heart disease, strokes, respiratory diseases like lung cancer, and premature death. Such concerns prompted the Environmental Protection Agency to toughen pollution limits for the first time in a decade, lowering the limit from 12 micrograms per cubic meter of air to 9 earlier this month.

    But a stricter standard isn’t likely to resolve the problem, said Marissa Childs, a post-doctoral researcher at Harvard University’s Center for the Environment. That’s because the agency considers wildfires an “exceptional event,” and therefore exempt from the regulation. Yet about one-third of all particulate matter pollution in the United States now comes from wildfire smoke. “The Clean Air Act is challenged by smoke,” she said, both because wildfires defy the EPA’s traditional enforcement mechanisms, and because of its capacity to travel long distances. “Are we going to start saying that New York is out of compliance because California had a fire burning?”

    To get a better sense of how a growing exposure to air pollution might impact the public, First Street used wildfire and climate models to estimate what the skies might look like in the future. (Though its researchers relied on Childs’ national database of PM2.5 concentrations, she was not otherwise involved with First Street’s report.) They found that by 2054, 50 percent more people, or 125 million in all, will experience at least one day of “red” air quality with an Air Quality Index from 151-200, a level considered risky enough that everyone should minimize their exposure. “We’re essentially adding back additional premature deaths, adding back additional heart attacks,” Porter said at a meeting about the report. “We’re losing productivity in the economic markets by additionally losing outdoor job work days.”

    First Street has now added its air quality predictions to an online tool that allows anyone to search for climate risks by home address. As extreme heat increases ozone and changing conditions intensify wildfires, it shows just how unequal the impacts will be. While New York City is projected to see eight days a year with the Air Quality Index at an unhealthy orange, meaning an in the range of 101 to 150, an increase of two days, the Seattle metropolitan area is expected to see almost two additional weeks of poor air. “That’s two more weeks out of only 52,” said Ed Kearns, First Street’s chief science officer. “Twelve more days of being trapped in your house, not being able to go outside — worrying about the health consequences.”

    Just as the sources of pollution are unevenly distributed, so too is people’s ability to respond. “People across the board are seeking information about air quality,” Childs said, for example, searching online about pollution levels on particularly smoky days. But not everyone has the same ability to make choices to protect themselves. Childs cowrote a 2022 Nature Human Behavior paper that found behavioral responses to smoke — staying indoors, for example, or driving to work rather than waiting for the bus — are strongly correlated with income. If left to individuals, she says, “the people who have the most resources are going to be the most protected, and we’re going to leave a lot of people behind.”

    In a collaboration with real estate company Redfin, First Street found early signals that suggest people are already leaving areas with poor air quality. Tarik Benmarhnia, an environmental epidemiologist at the University of California, San Diego, quibbles with those conclusions, however, saying many variables influence both air quality and residential mobility, like income and housing prices. Air pollution is a notoriously complex subject — difficult to predict even a week out, much less speculate on what might happen in three decades. “I think the most critical problem is a total absence of any discussion of uncertainty,” he said.

    He also worries that First Street’s risk index could unintentionally magnify these distinctions of privilege. If potential homeowners use the database to avoid areas based on the report’s predictions, property values in those regions could fall accordingly, reducing tax bases and decreasing the ability to provide services like community clean air rooms during smoke events. “It may act like a self-fulfilling prophecy.”

    Benmarhnia notes that traditional sources of air pollution, like factory emissions, show a very consistent relationship between socio-economic status, race, and higher pollution levels, a pattern that repeats across the country. Smoke and ozone don’t tend to follow these social gradients because they disperse so widely. “But wildfire smoke doesn’t come on top of nothing, it’s on top of existing inequities” like access to health care, or jobs that increase outdoor exposures, he said. “Not everybody is starting from the same place.” Benmarhnia recently published a paper finding that wildfires, in concert with extreme heat, compound the risk to cardiovascular systems. But the people most likely to be harmed by these synergies live in low-income communities of color.

    “The thing about air pollution is there’s only so much you can do at individual or civil society level,” said Christa Hasenkopf, the director of the Clean Air Program at the Energy Policy Institute at the University of Chicago. “It’s a political and social issue that has to be tackled at a national level.” The university’s Air Quality Life Index measures how air pollution is contributing to early deaths around the world, aiming to provide a clearer image of the health gaps. “The size of the impact on life expectancy in two relatively geographically nearby areas can be surprising,” she says, like between eastern and western Europe.

    For her part, Hasenkopf is enthusiastic about First Street’s air quality report, hoping it will help highlight some of these inequities. Though 13 people die every minute from air pollution, funding for cleaner air solutions remains limited. “That disconnect between the size of the air pollution issue, and what resources we are devoting to it is quite startling,” Hasenkopf said.

  • Photos from the Milan opening ceremony
     A general view of the Olympic flame in the Olympic cauldron designed by Marco Balich next to the Arco della Pace monument in Milan.
    A general view of the Olympic flame in the Olympic cauldron designed by Marco Balich next to the Arco della Pace monument in Milan.

    Topline:

    The 2026 Milan Cortina Winter Olympics kicked off in Milan on Friday evening, local time. Athletes representing over 90 countries march into the San Siro stadium filled with thousands of spectators during the opening ceremony in Milan.

    Read on ... to see photos from the 2026 Winter Olympics opening ceremony.

    The 2026 Milan Cortina Winter Olympics kicked off in Milan on Friday evening, local time. Athletes representing over 90 countries march into the San Siro stadium filled with thousands of spectators during the opening ceremony in Milan.

    The performance paid homage to Italian music, art and culture with tributes to composers, visual artists and films in a colorful spectacle. Performers included Italian actress Matilda De Angelis, American singer Mariah Carey, Italian singer Andrea Bocelli, Italian rapper Ghali and Italian ballet dancers Antonella Albano and Claudio Coviello, among dozens of other dancers.

    Here is a selection of images from the opening ceremony:

    Italian ballet dancers Antonella Albano and Claudio Coviello perform during the opening ceremony.
    Italian ballet dancers Antonella Albano and Claudio Coviello perform during the opening ceremony.
    (
    Wang Zhao
    /
    Getty Images
    )
    Colorful dancers perform under large tubes of paint suspended above them during the opening ceremony.
    Colorful dancers perform under large tubes of paint suspended above them during the opening ceremony.
    (
    Gabriel Bouys
    /
    Getty Images
    )
    Italian actress Matilda De Angelis (center) performs with dancers dressed as the three great masters of Italian opera: Giuseppe Verdi, Giacomo Puccini and Gioachino Rossini.
    Italian actress Matilda De Angelis (center) performs with dancers dressed as the three great masters of Italian opera: Giuseppe Verdi, Giacomo Puccini and Gioachino Rossini.
    (
    Piero Cruciatti
    /
    Getty Images
    )
     Mariah Carey sings during the opening ceremony.
    Mariah Carey sings during the opening ceremony.
    (
    Wang Zhao
    /
    Getty Images
    )
     Performers dressed in the colors of the Italian flag line up during the opening ceremony.
    Performers dressed in the colors of the Italian flag line up during the opening ceremony.
    (
    Piero Cruciatti
    /
    Getty Images
    )
     Members of The Corazzieri, the Italian Corps of Cuirassiers, raise the Italian flag during the opening ceremony.
    Members of The Corazzieri, the Italian Corps of Cuirassiers, raise the Italian flag during the opening ceremony.
    (
    Wang Zhao
    /
    Getty Images
    )
     Two performers are suspended between two large rings.
    Two performers are suspended between two large rings.
    (
    Piero Cruciatti
    /
    Getty Images
    )
     The Olympic Rings are revealed above dancers during the opening ceremony.
    The Olympic Rings are revealed above dancers during the opening ceremony.
    (
    Piero Cruciatti
    /
    Getty Images
    )
     An aerial view of the athletes parading into the San Siro stadium.
    An aerial view of the athletes parading into the San Siro stadium.
    (
    Antonin Thuillier
    /
    Getty Images
    )
     Stoats Milo and Tina, the Paralympics and Olympics mascots, dance before the Olympic opening ceremony.
    Stoats Milo and Tina, the Paralympics and Olympics mascots, dance before the Olympic opening ceremony.
    (
    Ben Curtis
    /
    AP
    )

  • Newly released files reveal ties to organizers
    a man in a black suit and tie stands at a podium with the olympic rings on it next to a big olympic flag
    Casey Wasserman, chairman of the Los Angeles Organizing Committee for the 2028 Olympic and Paralympic Games spoke during an IOC meeting ahead of the 2026 Winter Olympics, in Milan, Italy, on Tuesday. Wasserman faces calls to step down after it was revealed that he exchanged emails with Epstein collaborator Ghislaine Maxwell.
    Topline:
    During the first days of the 2026 Milan Cortina Winter Games, the long shadows of Jeffrey Epstein and Ghislaine Maxwell spread to touch the Olympic movement. While in Milan, one of the top organizers of the 2028 Los Angeles Summer Games faced calls to step aside after his emails turned up in the latest tranche of Epstein documents released by the U.S. Justice Department.

    The backstory: There's no indication of criminal wrongdoing in the emails, which were sent more than twenty years ago. But for a prominent figure like Wasserman, who heads an influential sports and entertainment agency, any association with the pair is fraught.

    Maxwell was sentenced to 20 years behind bars in 2022 for conspiring to sexually abuse minors. Epstein died by suicide while awaiting trial in jail in 2019.

    Read on ... for more on how the latest release of documents is casting a pall over the Olympic Games.

    MILAN — During the first days of the 2026 Milan Cortina Winter Games, the long shadows of Jeffrey Epstein and Ghislaine Maxwell spread to touch the Olympic movement.

    While in Milan, one of the top organizers of the 2028 Los Angeles Summer Games faced calls to step aside after his emails turned up in the latest tranche of Epstein documents released by the U.S. Justice Department.

    "I will be in nyc for four days starting April 22...can we book that massage now," wrote Casey Wasserman in an email to Maxwell in the spring of 2003. A few days later, Wasserman said, "The only thing I want from Paris is you."

    There's no indication of criminal wrongdoing in the emails, which were sent more than twenty years ago. But for a prominent figure like Wasserman, who heads an influential sports and entertainment agency, any association with the pair is fraught.

    Maxwell was sentenced to 20 years behind bars in 2022 for conspiring to sexually abuse minors. Epstein died by suicide while awaiting trial in jail in 2019.

    Wasserman has kept a low profile since news of his emails broke. He appeared publicly this week at a gathering of the International Olympic Committee (IOC) in Milan, where he touted progress developing the L.A. Games but didn't take questions from reporters.

    In a statement, Wasserman said he never had "a personal or business relationship with Jeffrey Epstein" and he apologized for his flirtatious exchanges with Maxwell. "I am terribly sorry for having any association with either of them."

    That hasn't quelled the controversy. A growing number of political leaders in L.A. have called for Wasserman to step down from his role as one of the leading public faces of the next Summer Games.

    "Casey Wasserman should step aside immediately," L.A. City Councilmember Hugo Soto-Martinez said in a statement sent to LAist. "Anything less is a distraction and undermines efforts to make sure the Games truly reflect the values of a city that is for everyone."

    L.A. city controller Kennith Mejia, who monitors the city's finances, said on social media that "Los Angeles cannot trust our financial future to someone connected with Jeffrey Epstein and Ghislaine Maxwell." Mejia added that "Wasserman must take accountability and resign."

    Questions of Wasserman's future keep surfacing in Milan as the first sports competitions get underway. IOC chair Kirsty Coventry acknowledged at a press conference Thursday that she's been asked repeatedly about the scandal.

    "Casey has put out a statement. I have nothing further to add on that," she said. Asked about the fact that Wasserman hasn't spoken directly with journalists, Coventry said, "I'll have them come find you guys and have a little chit-chat."

    The head of the U.S. Olympic and Paralympic Committee, Gene Sykes, also faced repeated questions about the matter in Milan on Thursday.

    "Casey's made a statement that reflects the perspective he has on what came to light, when the emails were released, with the rest of the Epstein file," Sykes told reporters. "We have nothing to add to that, his statement stands on its own."

    Sykes went on to voice confidence in Wasserman's leadership. "I have more confidence today in L.A. 28's operational capabilities, its leadership, the quality of what its doing and how well they're executing than I've had at any point of time," he said, pointing to the L.A. bid's strong fundraising.

    A long list of corporate executives, academic leaders, physicians, scientists, politicians, members of European royalty, and others, have been caught up in the Epstein scandal. A growing number of them have resigned, been fired, or been forced to step back from public life.

  • Advertisers playing it safe for this year's game
    two men with shaggy brown hair sit together in a crowd and one is holding up a yellow fork.
    Actors Matthew McConaughey and Bradley Cooper appear in an Uber Eats ad linking football to a humorous food sales conspiracy.

    Topline:

    A dive into the raft of ads airing in the Big Game that were released early, aimed at rocketing around social media to build buzz before their debut Sunday, revealed the typical mix of celebrities, nostalgia, special effects and bold humor we see every year.

    What's new: New in the mix: A few efforts encouraging fans to build their own Super Bowl commercials, including an option from Uber Eats allowing users to make 1,000 versions of celebrity-filled ads and a contest sponsored by Artlist.io, an AI platform for video creation, offering $60,000 for the best subscriber-created spot.

    Read on ... to take a look at some of this year's biggest ads.

    If you're wondering whether it is truly worth the $8 million to $10 million cost per 30 seconds to air a commercial during the Super Bowl, just ask the creative minds behind the pro-Jesus advertising campaign "He Gets Us."

    According to Come Near, the group managing the "He Gets Us" campaign, after airing commercials in three previous Super Bowls, they have seen nearly 10 billion video views, more than 70 million visitors to their website HeGetsUs.com and an awareness of the campaign so high that 40% of adults in the U.S. now know about He Gets Us.

    And they expect that awareness to only expand with their fourth Super Bowl ad this Sunday titled "More," focused on the pressures many feel in modern society to pursue more of everything.

    "There's not a lot of moments like this. … We're looking for moments where people really congregate," says Simon Armour, chief creative officer for Come Near, which has crafted the "More" ad as part of a campaign called "Loaded Words." "We're constantly asking, 'Are we really meeting people where they're at?'"

    Offering a distinctly non-commercial message in the middle of the world's biggest advertising showcase is certainly one way to stand out. But that's only one of the many messages featured in an event that set a record last year — and the year before — as the most watched single telecast in U.S. history.

    A dive into the raft of ads airing in the Big Game that were released early, aimed at rocketing around social media to build buzz before their debut Sunday, revealed the typical mix of celebrities, nostalgia, special effects and bold humor we see every year.

    New in the mix: A few efforts encouraging fans to build their own Super Bowl commercials, including an option from Uber Eats allowing users to make 1,000 versions of celebrity-filled ads and a contest sponsored by Artlist.io, an AI platform for video creation, offering $60,000 for the best subscriber-created spot.

    And, as we have seen in recent years, there's a decided lack of commercials offering any kind of sharp social message. At a time when America seems more divided than ever, most advertisers don't seem keen on spending millions to address the social or political issues of the day.

    Of course, the most impressive messages may not surface until the Big Game itself. But here's a look at some of the most interesting commercials unveiled in advance, offering a look at the bold swings marketers are about to take on the biggest stage in media.

    Best use of a self-deprecating celebrity, Part 1: Raisin Bran's 'Will Shat'

    YouTube

    One of the coolest things in modern pop culture has been to watch Star Trek icon William Shatner morph from an overacting, self-serious stick in the mud into a goofy celebrity who begrudgingly accepts that it's better to play along with his peculiar kind of fame rather than resist it. The 94-year-old comes full circle with this ad for Raisin Bran that deftly spoofs both the result of eating all that fiber, Shatner's roots in science fiction and the scatological word game people likely have played with his last name for eons, introducing him in the commercial as a character named Will Shat. My favorite moment: when he looks over at a pet and asks, "Is that dog a Shih Tzu?" As a bonus, the Shat-man even made news in real life, when paparazzi thought he was eating a bowl of cereal while driving (he was actually posing for a photo shoot.)

    Most touching reference to Big Brother: Ring's 'Search Party: Be a Hero'

    YouTube

    Tell people that video doorbell company Ring can remotely link a bunch of cameras to look for something, and many may wonder if they've stumbled into a George Orwell novel. But show people how Ring cameras can be tasked to help find some of the 10 million dogs who go missing every year — using its new, free Search Party feature — and you have a teary, sentimental spot for the Big Game that pulls on the heartstrings while downplaying any concerns about Big Brother invading their privacy (fear not, Search Party is a program you have to opt into).

    Best argument to Hollywood for using AI: Xfinity's 'Jurassic Park … Works'

    YouTube

    Cool as it is to suggest that one tech geek from Xfinity could have kept all the dinosaurs from escaping Jurassic Park, the telecommunication company went one better in this ad – basically showing the potential for de-aging and computerized imagery in film by creating new scenes for the 1993 movie featuring stars Sam Neill, Laura Dern and Jeff Goldblum. In Xfinity's new spot, they're jogging with herds of dinosaurs and posing for pictures with a T. rex instead of running for their lives. Of course, a happy ending invalidates the film's whole "egotistical man shouldn't meddle with natural ecosystems he doesn't understand" message. But it will probably sell an awful lot of Wi-Fi service.

    Best use of a self-deprecating celebrity, Part 2: TurboTax's 'The Expert'

    YouTube

    Adrien's Brody's over the top antics while portraying a TurboTax expert – despite the company's insistence that the program helps keep taxes "drama free" — is a delicious send-up of his own self-serious reputation. (My fave moment is when he screeches "If there's no drama, then there's no Adrien Brody!") It's almost enough to make you forget the record-setting arrogance of his way-too-long best actor acceptance speech at last year's Oscars ceremony. Almost.

    Best headfake around men's silly sensibilities: Novartis' 'Relax Your Tight End'

    YouTube

    What's the best way to let men know there's now a less, um, invasive way of checking for prostate cancer than the old school finger method? This commercial, featuring football heroes like former New England Patriots tight end Rob Gronkowski and former Tampa Bay Buccaneers coach Bruce Arians urges men to relax their tight end — complete with shots that seem to depict that relaxation — thanks to the invention of a blood test to check for early signs. It's all a bit of cheeky good fun — OK, I couldn't resist that one — aimed at getting men to get over their hangups and get tested regularly for a disease that has an impressive survival rate if caught early.

    Best use of class warfare: Hims & Hers' 'Rich People Live Longer'

    YouTube

    Fresh off a controversy from last year, which found the telehealth company criticized for not being fully transparent about the side effects of its weight loss drugs, Hims & Hers is back with a spot that declares "the wealth gap is a health gap." Rapper and actor Common provides the voice-over for this spot, which shows wealthy people accessing all kinds of treatments and preventive care as the narration notes, "all that money doesn't just buy more stuff — it buys more time." Watching a big corporation spend millions pitching its products as an affordable way to bridge that gap, at a time when medical expenses are one of the leading causes of bankruptcy in the U.S., feels a little odd. But it's also a stroke of genius.

    Best parody of a competitor: Pepsi's 'The Choice'

    YouTube

    This spot, starting with a computer-generated polar bear getting confused after picking Pepsi over Coca-Cola in a blindfolded taste test, works in all kinds of ways. It pokes at Coke's longtime use of computerized bears in its own Big Game ads back in the day while indulging a bit of nostalgia. Extra points for a moment later in the ad that references the infamous Coldplay kiss cam incident and a cool cameo from impish director Taika Waititi.

    Most questionable joke: DoorDash's 'Beef 101'

    YouTube

    In the ad, 50 Cent presents the latest iteration of his beef with Sean "P Diddy/Puff Daddy" Combs as an epic exercise in tongue-in-cheek trolling. He reaches into a DoorDash pouch to pull out a bag of Cheesy Puffs, a pack of combs and a bottle of cognac he says is "aged four years … or 50 months. Who's keeping count?" But I bet Combs, now sitting in federal prison after his conviction on prostitution-related charges, surely is. And those who recall the allegations of sex crimes and abuse which surrounded the Combs trial, might not find a commercial seeking laughs by referencing that traumatic situation to be much fun at all.

    Most shameless pandering to bro culture: Bud Light's 'Keg'

    YouTube

    Football legend Peyton Manning, comic Shane Gillis and musician Post Malone seem mostly wasted in a nonsensical ad featuring an entire wedding party tumbling down a steep hill in pursuit of a single keg that fell off a dolly. Gillis gets the punchline, turning to the camera to say, "I give it a week," presumably in reference to the wedding. I'm betting most viewers forget about this uninspired ad even quicker.

    Best use of a conspiracy theory I might actually believe: Uber Eats: 'Hungry for the Truth'

    YouTube

    This spot continues the concept Uber Eats floated in last year's Super Bowl ad, featuring Matthew McConaughey insisting the NFL organized this whole professional football thing as a ruse to sell more food. This time, he's torturing poor fellow movie star hunk Bradley Cooper — who mostly looks like he just wants to be seen wearing gear featuring his beloved Philadelphia Eagles — pointing out all the NFL players named after food. But when he shows Cooper that the NFL Hall of Fame building looks just like a juicer — gotta say, I was nearly convinced.

  • Two victims have been identified
    A screenshot of a television broadcast showing an overhead view of an accident scene. A fire engine and ladder truck are visible on the scene, along with a police cruiser and multiple firefighters dressed in yellow turnout gear.
    Three people are dead and several others are injured after a woman crashed her car into a 99 Ranch Market in Westwood.

    Topline:

    Authorities have released the identities of two of the three people killed in Thursday's car crash into a 99 Ranch supermarket in Westwood. One of the deceased is 42-year-old woman Deris Renoj. The other is Zih Dao, a 28-year-old man.

    Two of the victims are employees at the Chinese super market, while the third is a customer. Authorities did not release additional details associated with the two names.

    The backstory: The deadly crash happened around noon Thursday, when a sedan driven by a 92-year-old woman rammed into the grocery store on Westwood Boulevard after hitting a bicyclist and losing control of the car. Additional people were injured.

    Go deeper: At least three dead, several injured after car crashes into Westwood 99 Ranch Market