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The Brief

The most important stories for you to know today
  • This court is quietly shaping policy

    Topline:

    The Trump administration has reshaped a lesser-known corner of the Justice Department to set immigration policy and escalate mass detentions and deportations.

    About the court: An administrative court known as the Board of Immigration Appeals has published a body of immigration case law that significantly narrows the due process and relief from deportation available for immigrants, an NPR analysis of its decisions shows. The White House has done that by shrinking the size of the board by nearly half — and stacking the remaining slate of 15 judges with President Trump's appointees.

    Why it matters: The board has made it harder for immigration courts to offer immigrants bond in lieu of detention. It's made it easier to deport migrants to countries other than their own. And a new proposed regulation would make it harder for people to appeal their immigration decisions at all.

    Read on... for more about how this administrative court is changing policy.

    The Trump administration has reshaped a lesser-known corner of the Justice Department to set immigration policy and escalate mass detentions and deportations.

    An administrative court known as the Board of Immigration Appeals has published a body of immigration case law that significantly narrows the due process and relief from deportation available for immigrants, an NPR analysis of its decisions shows.

    The White House has done that by shrinking the size of the board by nearly half — and stacking the remaining slate of 15 judges with President Donald Trump's appointees.

    Last year, their decisions backed Department of Homeland Security lawyers in 97% of publicly posted cases; that's at least 30 percentage points higher than the average from the last 16 years.

    Loading...

    The board has made it harder for immigration courts to offer immigrants bond in lieu of detention. It's made it easier to deport migrants to countries other than their own. And a new proposed regulation would make it harder for people to appeal their immigration decisions at all.

    The board did this last year while quickly pumping out 70 published decisions, a record number of precedent-setting cases.

    "The board has an impact on immigration law that is much, much bigger than the number of people that are on it," said Andrea Sáenz, a former board judge appointed by former President Joe Biden and terminated by Trump last year. "That's because they have this ability to set immigration precedents and rules for the whole country."

    Immigration courts are housed within the Executive Office for Immigration Review, or EOIR, at the Justice Department and are not a part of the independent judiciary.

    Immigration and Customs Enforcement attorneys appear before these courts to make their arguments about why someone should be removed from the country. Immigrants, meanwhile, appear before these courts to make their case about why they should be allowed to stay in the U.S.

    The point of the Board of Immigration Appeals, former members and immigration attorneys said, is to catch mistakes made by immigration judges. After an immigration judge issues a decision, both the immigrant and ICE have a right to appeal that decision.

    "The stakes are so incredibly high in the immigration proceedings and the law is so complicated and convoluted and difficult," said Victoria Neilson, supervising attorney at the National Immigration Project at the National Lawyers Guild. "Even assuming that [immigration judges] are acting in good faith, they're going to get things wrong sometimes because the laws are changing all the time."

    Former BIA judge Katharine Clark had been at the DOJ for over 15 years and joined the Board in 2023.

    She worked there until she received her reduction in force notice last year.

    She said she reviewed thousands of cases in her role. These reviews were meant to catch overlooked details in an immigrant's case or testimony that could make the difference between approving or denying a deportation order.

    "We lose an absolutely crucial method of catching errors by immigration judges who are absolutely flooded with cases," Clark said about the administration's gutting of the board. "In this situation, mistakes are essentially inevitable."

    A DOJ spokesperson, who provided a statement sourced to the agency, said EOIR is "restoring integrity to the immigration adjudication system, and Board of Immigration Appeals decisions reflect straightforward interpretations of clear statutory language."

    "President Trump and the Department of Justice will continue to enforce the law as it is written to defend and protect the safety and security of the American people," the spokesperson said.

    "Under the leadership of Chief Appellate Immigration Judge Garry Malphrus, the BIA is now recommitted to following the law and fulfilling its core adjudicatory mission."

    Trump changed the makeup of the board

    Within a month of taking office, leadership in the new Trump administration moved forward with a reduction in force, cutting the number of appellate judge slots on the board from 28 to 15. The first to be dismissed were the most recent hires: those appointed by Biden.

    Those had been there longer were also a part of the reduction in force or resigned soon after.

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    The changes in the workforce mirror a pattern seen across the federal government, especially immigration courts, where in the last year at least 100 judges were fired, and more resigned or retired. An NPR analysis last month found there are now a quarter fewer immigration judges than there were at the start of 2025.

    Justice Department leaders have sent several memos and directives signaling to judges and appellate members that they want streamlined asylum and bond denials.

    EOIR did not respond to a request for comment on the reduction in force. In the federal register notice announcing the reduction, the agency says a larger board wasn't more productive at reviewing more cases.

    "Although many factors may have contributed to this outcome—including organizational and administrative challenges—the data demonstrate that increasing the Board's size has not brought about the hoped-for increases in productivity envisioned by prior expansions," the notice states.

    Making rapid policy changes

    BIA's public decisions set the precedent and tone for what immigration judges nationwide should do and how the general public should interpret immigration law and policy.

    The number of such decisions has skyrocketed under Trump — as the board seeks to cement a particular interpretation of the law. An NPR analysis looked at BIA decisions over the past four administrations, going back to 2009.

    It found that in 2025, the agency published 70 decisions. That is nearly as many as all of the decisions posted publicly under Biden and the single highest yearly total since 2009.

    Judges that make up BIA panels reviewing appeals could consider tens of thousands of cases a year, but the vast majority are never made public.

    "There are thousands and thousands of unpublished decisions that come out of the board every year that are your ordinary cases. And then normally, you'd maybe have two or three dozen precedents that are intended to explain a part of the law in more detail," said Sáenz, now with Co-Counsel NYC, a nonprofit immigration law organization. "And they're intended to be binding on the whole country and all immigration judges and [U.S. Citizenship and immigration Services] to say, this is how you actually follow this piece of the law."

    ICE attorneys generally receive favorable orders in most cases against immigrants before the board, according to the data included in NPR's analysis; 2015 was the only exception, where immigrants won more cases than the administration did.

    But in 2025 the government won 97% of the public cases brought before the board — a new high. In one of two cases in which the board did not side with DHS, DHS attorneys failed to appear at the initial hearing.

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    Already in 2026, NPR has tracked 21 decisions with DHS winning all but one of them, according to an NPR analysis of published decisions. The one case where the board ruled in favor of an immigrant involved the person withdrawing their appeal for asylum; they had already been granted another protection from deportation.

    "Tangible effect on the lives of millions"

    The administration "came in this time knowing we don't necessarily need to have immigration judges in place, we need to have the policy in place," said former BIA judge Homero Lopez, who was appointed by Biden and let go last year. "And the policy gets made by the board, not by the immigration judges."

    Neilson, the attorney at the National Immigration Project, said recent decisions "have formed the backbone for how immigration judges" are allowed to consider asylum and bond cases.

    "They've issued several decisions that make it impossible or nearly impossible for those who can seek bond from the immigration judge to even get bond," she said.

    The BIA has made at least three decisions that limit whether an immigrant can be granted bond to be out of detention while their case plays out in the courts.

    In one case, Matter of Yajure Hurtado, the board ruled that immigration judges have to deny bond and detain noncitizens who entered the country illegally. Several district court judges have rebuked the Trump administration's mandatory detention policy. Still, EOIR leaders in January instructed immigration judges to defer to Hurtado's case as precedent and to deny bond.

    Federal appellate courts are now weighing in on the matter.

    "The decisions that the board has made to take away the option of getting immigration bonds for various large groups of people has been by far the most impactful thing that has happened there since I left," said Clark, the former BIA judge. "It really has had a tangible effect on the lives of millions of people."

    Other BIA decisions have paved the way for the government to more easily deport people to third countries — those countries other than their home country.

    Proposed rule meant to curtail further appeals

    At the start of 2026, the administration started phasing in more changes. A newly proposed rule would have shortened the window for immigrants' appeals to the board from 30 days to 10, and made it easier for appeals to the BIA to be dismissed before being heard.

    The rule was aimed at reducing the BIA's pending backlog, which topped 200,000 cases as of the end of last year, according to EOIR.

    Five immigrant rights organizations sued the administration, successfully arguing the rule would limit due process by straining legal services in order to meet the shorter deadlines.

    A federal district judge last week blocked most of the new rule from taking effect, calling it unlawful and unenforceable.

    Judge Randolph Moss on the U.S. District Court for the District of Columbia said the government offered only one reason why immigration attorneys might see a reduced workload thanks to the rule: they would "quickly lose virtually every appeal that they bring before the Board."

    "Defendants' argument is like telling Habitat for Humanity that a rule limiting new home construction will help, rather than hurt, the organization because it will incur fewer costs acquiring lumber and nails," Moss wrote in his opinion.

    The lawsuit is still ongoing. EOIR said it does not comment on litigation-related matters.

    "If someone feels like they had their fair day in court and they just didn't meet the legal standard, people can kind of accept that," Nielson said. "But if you give up everything to follow the rules and then suddenly the rules disappear, that seems very un-American."

    This story used artificial intelligence to help analyze 634 cases that were decided by the Board of Immigration Appeals from January 1, 2009 to March 18, 2026. For each case, the AI tool determined whether the panel had decided for the Department of Homeland Security or for the immigrant. NPR reporters tested and verified the accuracy of the tool's results, and an independent lawyer who manually tracked court cases for 2021 and 2015 reviewed the analysis and confirmed the results.

    Copyright 2026 NPR

  • Preschools lose enrollment as TK grows
    A close up of children's toy blocks and furniture, with a dark rug with stars and clouds in the foreground.
    Childcares have been losing older preschoolers which have traditionally helped subsidize younger kids.

    Topline:

    Childc are providers in California are struggling to stay afloat, as they’re losing enrollment to transitional kindergarten. That’s according to a new report from the  Center for the Study of Child Care Employment at UC Berkeley. And the upshot is that it could make child care in California even harder to find.

    The backstory: The state fully implemented a new grade for 4-year-olds called transitional kindergarten last school year. But private child cares are losing that enrollment.

    Why it matters: Between 2019 and 2025, about 1,100 preschools have closed across California. Experts say parents will have fewer options to choose from if the trend continues for their children 4 and under.

    Parents could soon be headed for an even bigger child care crunch in California, experts say.

    That’s because the rollout of a new grade for 4-year-olds in the state’s public schools is having unintended consequences for child care businesses, according to a new report by the Center for the Study of Child Care Employment at UC Berkeley.

    Child cares have historically cared for children 5 and under, but the report found they’re losing more 4- and 5-year-olds to transitional kindergarten, a universal option that was fully implemented last school year.

    Sue Carrera, who runs a home daycare in Inglewood, said that before the pandemic, she had an average of 12 kids enrolled in her program. Now, she has only four — the lowest since she opened up her business in 2008 — as she’s seen children move to the public school system earlier.

    “ I don't really see myself staying in this business for any lengthy period of time,” she said.

    The way that part of the child care business model worked was that older-age preschool children have helped subsidize the cost of caring for infants and toddlers, who are more expensive to care for, said Anna Powell, the report’s lead author.

    “ When we're tinkering with a model where there's — ‘it already kind of barely makes ends meet’ — it absolutely can cause big ripple effects and potentially lead to system-level closures,” Powell said.

    Between 2019 and 2025, about 1,100 preschools have closed across California.

    The report, which used a survey of thousands of child care providers, found that at child cares based at facilities, average enrollment of 4- to 5-year-olds fell by five children from 2023 to 2025. It also found that at the same time, providers haven’t been able to make an easy shift to caring for more babies. The teacher to child ratio is higher for infants (1 to 4) than for older preschoolers (1 to 12).

    “ There's no resources to help them buy cribs that they didn't need before, and now suddenly they must have on site. There's no resources for educators who are used to, after decades, working with 4- and 5-year-olds, learning, 'How do I need to adapt my craft to work with these younger children?’” Powell said.

    The study recommends California invest in the early education system in the same way it has invested in transitional kindergarten.

    If more preschools close down the line, it could mean families may struggle more to find child care in an already scarce environment, said Debra Coleman,  director of the L.A. County Office for the Advancement of Early Care and Education.

    In 2022, there were licensed spaces in L.A. County to be able to serve only 4% of children under 2 years old.

    “If you have less options, you will have less choices of where to go. It might impact the capacity,” Coleman said. “ It might take us from a very fragile system to a fractured system.”

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  • A few days of mild, cloudy weather
    A lifeguard tower painted with rainbow colors sits on a small strip of brown sand at the bottom of the photo. The rest of the frame is filled with grey clouds.
    A low pressure system is bringing mild, cloudy weather to Southern California this weekend, with heat expected to return next week.

    Topline:

    Forecasters say Southern California will be relatively cool and cloudy for the next few days after a summer of repeated heat waves.

    The details: Highs along the coast will be in the 70s over the next few days. Inland areas of L.A. and Orange counties will get up to the 80s. The cloud cover will likely be widespread on Friday and much of Saturday, but concentrated mostly in the morning hours and along the coast.

    The science: A system of low pressure air has moved into the region. Low pressure systems force air to rise, and as air rises it cools. It also eventually condenses, often forming cloud cover. Meanwhile, a deep marine layer and onshore winds are helping push those clouds farther inland.

    Read on … to learn how long this reprieve from the heat will last. 

    Southern California is getting a dose of unseasonably cool weather — a welcome break after a series of hot, humid heat waves over the last few months.

    Lower than normal temperatures are expected to stick around through the weekend.

    Highs along the coast will be in the 70s over the next few days. Inland areas of L.A. and Orange counties will get up to the 80s. Even the Inland Empire is expected to peak at about 90 degrees on Friday.

    The cooler temperatures are also expected to come with cloudy skies across the region.

    The cloud cover will likely be widespread on Friday and much of Saturday, but concentrated mostly in the morning hours and along the coast, where skies could stay cloudy through the afternoon.

    The cool, mild conditions won’t last long, though.

    Forecasters say temperatures will start to tick back up on Saturday. They will stay below normal seasonal levels for a few days, but the summer heat will be back by the middle of next week.

    So this weekend might be a good time to go on a hike or host that barbecue.

    Low pressure equals mild temperatures 

    The cool weather is a pretty stark change.

    Just a few weeks ago, the National Weather Service was issuing warnings across Southern California for extreme heat and predicting nearly record-breaking temperatures. Now, atmospheric conditions have shifted.

    Much of that suffocating heat was driven by a massive system of high pressure air hovering over the Southwestern U.S.

    High pressure systems trap warm air beneath them and compress it, further warming the air and preventing cooler air from displacing it.

    This week, the high pressure system finally loosened its grip.

    “That ridge of high pressure kind of broke down, and then a trough of low pressure developed off and along the coast of California,” said Devin Black, a National Weather Service meteorologist.

    Low pressure systems force air to rise, and as air rises it cools. It also eventually condenses, often forming cloud cover.

    That’s one reason behind the clouds in Southern California this week.

    Meanwhile, a deep marine layer and onshore winds are helping push those clouds farther inland. Forecasters note that the low pressure system and onshore winds are also keeping humidity levels up.

    Despite the cloud cover and moisture, it’s unlikely there will be much, if any, rain. Some minimal precipitation could be possible in Ventura and Santa Barbara county mountains.

    The low pressure system and marine layer will start to shrink on Saturday, allowing heat-generating high pressure to move back into the region.

  • Company may not meet Friday deadline
    Two flat bed trucks and a small tractor are parked alongside a large white commercial building. Workers in orange safety vests are standing next to the trucks.
    Cleanup continues Wednesday, Aug. 12, 2026, at the Lineage warehouse.

    Topline:

    Friday is the deadline set by L.A. Mayor Karen Bass for the removal of all rotting food from the Lineage Logistics cold storage facility in Boyle Heights. Bass reiterated on Thursday that all of the approximately 88 million pounds of food that had been stored inside when the facility caught fire in June is expected to be removed by Friday. But Los Angeles Councilmember Ysabel Jurado, who represents District 14 where Lineage is located, said Thursday afternoon that the cleanup efforts will likely not meet the deadline. 

    Lineage appears not on pace to meet deadline: Lineage is clearing between 1% and 1.5% of food each day, according to their progress reports. This roughly aligns with the weekly goal AQMD ordered Lineage to maintain, 10% or 8.8 million pounds of food removed each week. At that pace, it is unlikely they’ll be able to remove the remaining 7% of food waste in the next 24 hours. 

    What happens if the deadline is not met? Bass’ executive order does not provide details on what will happen if Lineage does not meet the Friday deadline for clean up.

    The deadline set by L.A. Mayor Karen Bass for the removal of all rotting food from the Lineage Logistics cold storage facility in Boyle Heights is fast approaching.

    Bass reiterated on Thursday to The LA Local that all of the approximately 88 million pounds of food that had been stored inside when the facility caught fire in June is expected to be removed by Friday. 

    City Councilmember Ysabel Jurado, who represents District 14 where Lineage is located, said in a press release Thursday afternoon that the cleanup efforts will likely not meet the deadline. 

    “I fully support the Mayor leveraging all the enforcement, cost-recovery, and accountability tools available to make clear that when the City establishes a public-health deadline, corporations are expected to meet it — and there are consequences when they do not,” Jurado said in the statement.

    The company’s reports on the cleanup progress, similarly, have not appeared to be on pace with meeting that deadline. And some residents believe the putrid air they’ve had to live with for months will linger indefinitely despite the bureaucratic goal posts being met or moved.

    Here’s what we know about the final phase of cleanup.

    What is the deadline?

    A large white commercial building with signage that reads, "Lineage."
    Workers continue to clear out the Lineage warehouse in Boyle Heights.
    (
    Steve Saldivar
    /
    The LA Local
    )

    Soon after a fire broke out on the roof of the 500,000-square-foot cold storage facility on Los Palos Street on June 17, the managers cut the power to the two massive refrigerated rooms in the building. While firefighters took about a week to contain the blaze, the millions of pounds of food inside quickly began to rot in the summer’s heat.

    Bass on June 29 issued an executive order requiring the removal of all remaining food in 45 days, or Friday, Aug. 14. Food cleanup began in early July.

    Meanwhile, residents of Boyle Heights, East L.A. and several other neighboring communities who were left to deal with the putrid odors, have made more than 4,000 air quality complaints to regulators since early July.

    It’s not the only deadline Lineage Logistics faces.

    The South Coast Air Quality Management District, which regulates air pollution in the region, issued 19 notices of violation alleging the odors created a public nuisance. Last week, the agency ordered the company to meet dozens of cleanup and air quality control standards, including enforceable requirements for food removal and full facility cleaning.

    That agency set a separate deadline of weeks for the food and other material to be removed before the remaining freezer room is fully sanitized.

    What’s been cleaned up so far?

    The freezer that was extensively damaged by fire has been cleared. The remaining freezer held the vast majority of the rotting food that has been polluting the air in nearby neighborhoods.

    Lineage Logistics has for weeks reported on its website about its progress toward 100% cleanup. 

    Residents can get a sense of their pace for cleanup by tracking their reports:

    • Aug. 7: 85% of food waste had been removed 
    • Aug. 11: 92% of “bulk food cleanup” was completed
    • Aug. 12: 93% of food had been cleaned up

    It’s unclear how exactly Lineage is arriving at these measurements and how the city or some other agency is independently verifying this progress.

    Will they meet the deadline?

    Three men in orange safety vests drive a small motorized vehicle next to a building.
    The deadline set by Mayor Karen Bass for the removal of all rotting food from the Lineage Logistics cold storage facility in Boyle Heights is fast approaching.

    Lineage is clearing between 1% and 1.5% of food each day, according to their progress reports. This roughly aligns with the weekly goal AQMD ordered Lineage to maintain, 10% or 8.8 million pounds of food removed each week.

    At that pace, it is unlikely they’ll be able to remove the remaining 7% of food waste in the next 24 hours. 

    Unless they significantly accelerate, this puts full food cleanup somewhere into next week. That revised timeline better aligns with the one Dominic DiCarlo, vice president of global safety and compliance for Lineage, outlined during the AQMD hearing last week.

    DiCarlo added that the company expects to spend between $80 and $100 million on the cleanup and related expenses, which has been described as continuing around the clock.

    Lineage did not respond to The LA Local’s request for more information about their progress toward the mayor’s deadline on Thursday.

    What happens if they blow the deadline?

    Jurado reported Thursday that Lineage would not meet the deadline, and expressed frustration with what residents have had to deal with.

    Jurado’s statement reflected this: “For nearly two months, families in Boyle Heights have lived with unbearable odors, flies and pests, truck traffic, uncertainty, and disruption to their homes, businesses, and daily lives. They were told there was a deadline, and they had every right to expect that deadline to mean something.”

    Bass’ executive order does not provide details on what will happen if Lineage does not meet the Friday deadline for clean up. Her office told The LA Local that it will provide more information on Thursday about the consequences if the deadline is not met.

    She is also hosting a virtual community meeting Thursday about the cleanup efforts. 

    Bass was among several local elected officials who had pushed AQMD to levy fines on Lineage for its air pollution violations, which it did not do. She has pushed city agencies to prevent Lineage from reconstructing the facility and continuing its business there. Local lawmakers have also introduced legislation that could increasingly regulate similar businesses in the future.

    AQMD can levy penalties if Lineage does not meet its deadlines for cleanup in the coming weeks.

    What are residents saying?

    Residents on Prado Street were still hopeful Thursday that cleanup would be finished by the deadline.

    “Ojalá,” that’s what Irma Soto said when she was asked if she believed workers would finish in time. “I hope they finish so this could all end.”

    “It smells horrible,” she added as the stench emanated from the neighborhood early Thursday afternoon.

    Soto said she’s been seeing more trailers picking up debris lately. Her neighbor said there appears to be more nighttime work near the facility recently.

    “Who knows if they’ll finish, but they are working faster,” the neighbor said.

    The post Lineage unlikely to meet deadline to clear 88 million pounds of rotting food from Boyle Heights appeared first on LA Local.

  • OC beaches report increase in stingray lashings
    A round stingray flattened and camouflaged against dark brown sand. It looks like a thin brown mushroom cap with round orange spots and two eyes. Its sharp tail spine extends behind it.
    Round Stingray (Urolophus halleri) in an aquarium.

    Topline:

    Bolsa Chica and Huntington State Beaches reported more than 3,100 incidents of sting ray lashings so far this year, twice the number for all of 2025. The city of Huntington Beach’s 3.5-mile (5.6-kilometer) stretch of shoreline has reported more than 2,000 such incidents so far this year, more than during all last year.

    Warmer waters draw stingrays: Round stingrays are found in Pacific Ocean waters from Panama to Southern California and are known to veer toward the shore when the swell is down and the water warm. In recent years, many species that feed on rays, such as sharks, sea lions and giant sea bass, have seen their populations dwindle, allowing the number of stingrays to grow, said Chris Lowe, a professor of marine biology and director of the Shark Lab at California State University, Long Beach.

    Climate change: The ocean already has been warming because of human-caused climate change, according to meteorologists. This year has seen even more rays with a marine heat wave persisting off parts of the West Coast, marking the third time on record that such a large section of coastal waters stayed warm for so long, according to the U.S. National Oceanic and Atmospheric Administration.

    Jake Hemann grabbed a board and headed out to surf. But an hour later, he wound up sitting at the lifeguard station soaking his foot in a pail of hot water alongside four other beachgoers.

    It is a common scene at Bolsa Chica State Beach and some other popular beaches in Southern California where the number of people being hit by the sharp, serrated caudal barbs found on the tails of stingrays has gone up significantly from a year ago as a marine heat wave draws more stingrays — and people — to shore.

    Hemann, a 31-year-old tourist from New Mexico, said he was learning to surf when he hopped off his board and landed on what he thought was a sharp stick. “It hurt pretty bad,” he said, while sinking his throbbing foot into the hottest water tolerable to ease the pain. “It was radiating up to my ankle.”

    Bolsa Chica and Huntington State Beaches reported more than 3,100 incidents so far this year, twice the number for all of 2025. The city of Huntington Beach’s 3.5-mile (5.6-kilometer) stretch of shoreline has reported more than 2,000 such incidents so far this year, more than during all last year, while more than 900 stings were recorded on San Diego’s beaches during the first half of 2026, more than during the first six months of any of the past five years, lifeguard data shows.

    “We’re definitely seeing an increase,” said Bryan R. Etnyre, state park superintendent in northern Orange County. “A lot of it is due to warming ocean temperatures that are consistently staying in the 60s. I don’t think there was a week all winter where we dropped below 60 this year.”

    Warmer water draws rays and people

    Round stingrays are found in Pacific Ocean waters from Panama to Southern California and are known to veer toward the shore when the swell is down and the water warm.

    In recent years, many species that feed on rays, such as sharks, sea lions and giant sea bass, have seen their populations dwindle, causing the number of stingrays to grow, said Chris Lowe, a professor of marine biology and director of the Shark Lab at California State University, Long Beach.

    Rays are known to prefer warmer water, such as lagoons. Females prefer these waters to reproduce, and during the summer male rays have a higher metabolism that drives them to seek out food in the invertebrates along the shore, Lowe said.

    “They’re really a subtropical species that is thriving at the end of its range because of climate change,” Lowe said.

    The ocean already has been warming because of human-caused climate change, according to meteorologists.

    This year has seen even more rays with a marine heat wave persisting off parts of the West Coast, marking the third time on record that such a large section of coastal waters stayed warm for so long, according to the U.S. National Oceanic and Atmospheric Administration. In June, officials confirmed the formation of an El Niño, the natural warming of parts of the central Pacific that alters weather worldwide, that is expected to grow to historic strength.

    Meanwhile, more people have been heading to beaches seeking outdoor recreation since the coronavirus pandemic. And when the water is warm, they are more likely to swim.

    When rays are stepped on, they instinctively flick up their tails, stinging people with venomous barbs. Lifeguards urge bathers to shuffle their feet as they enter the water as the movement often gets rays to slide out of the way without stinging.

    In Southern California, lifeguards can treat 10,000 stingray injuries a year, Lowe said.

    In Seal Beach, one area draws so many due to an influx of warm water from a nearby power plant it is known as “ray bay,” though lifeguards there haven’t seen much change in stings this year.

    Using a 75-foot-long net, researchers swept up some 200 stingrays, each about the size of a dinner plate, on a section of the beach on a recent morning.

    “There can be so many that they actually carpet the bottom, like you can’t see sand,” Lowe said. “During El Niños, we get more of them up from the south, and they come closer to shore. So this year, we’re expecting record numbers.”

    Sting advisory and booties aim to help

    Lowe said he is working with television stations to develop a stingray advisory to help reduce the number of people who get stung, and the number of rays that get squished. Rays help keep the beach healthy by feeding on small clams and aerating sediment.

    Many beaches use an app to notify bathers when there are multiple stings at a location. Meanwhile, a company has developed surf booties that claim to be barb-resistant — though swimmers are urged to still tread lightly to avoid trampling the rays.

    At Bolsa Chica State Beach, swimmers suffering stings to the sides of their feet and toes sat in a circle refilling their pails with hot water from a hose. Some were there more than an hour waiting for the pain to ease.

    Most stings don’t require additional medical attention. If redness and swelling continue more than four or five days, there could be a medical complication such as an infection or a retained barb that can be seen on an X-ray, said Dr. Christanne Coffey, who researches the stings at University of California, San Diego Health.

    Allen Lowry said he was playing with his 7-year-old grandson when he came down on something squishy. He lifted his foot and saw blood so his wife drove him to the lifeguard station for a hot water soak, which is the remedy for stings.

    Lowry, 69, said he swims three times a week at another beach, and getting stung, though painful, won’t change that. He said some people in his swim group have been stung multiple times.

    “Usually, once the pain you feel goes away, you feel fine the next day,” he said.