The Brief

Ships plying the frigid waters near the Antarctic Peninsula, south of South America, will need to keep an eye on their radar for a floating island of ice: "The largest iceberg in the world, A-23a, is on the move into open ocean!" as the British Antarctic Survey recently announced.

"It's a trillion tons of ice. So it's hard to comprehend just how big a patch of ice this is," Ted Scambos, a senior research scientist at the University of Colorado Boulder, told NPR.

Iceberg A23a measures 40 by 32 nautical miles, according to the U.S. National Ice Center. For comparison, Hawaii's island of Oahu is 44 miles long and 30 miles across. And New York City's Manhattan Island is about 13.4 miles long and spans around 2.3 miles at its widest point.

When A23a was still part of an ice shelf, it held a Soviet research station — and it whisked that base off to sea when it floated away in the 1980s (more on that below). The iceberg then became grounded on the seafloor. But in recent years, it has been on the move again, after shaking loose.

Here's a quick recap of the iceberg, its history and its potential future:

It's the world's biggest iceberg

A23a hasn't always held the title. In 2021, for instance, it was supplanted by iceberg A-76, which broke from the Ronne Ice Shelf, also in the Weddell Sea. But that giant soon fractured into smaller icebergs, putting A23a back into the top spot.

"It's truly a gargantuan piece of ice," Scambos said, noting that the iceberg is likely 1,000 to 1,200 feet thick.

Its roots stretch to the austral winter of 1986, when the Filchner Ice Shelf's leading edge broke off to calve three huge icebergs: A22, A23 and A24. In late 1991, A23a became a separate iceberg.

A23a was grounded for decades

Recent satellite images have shown the migration of the mammoth iceberg known as A23a from its origins in the Weddell Sea to its current position on the edge of the open ocean.

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Worldview/NASA Earth Observing System/Screenshot by NPR

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If icebergs were humans, A23a would be a millennial. And like members of that generation who have sometimes been forced to stay home by harsh economic conditions, the iceberg has spent most of its independent existence grounded, stuck to a sandbank in shallow waters.

Little by little, the iceberg kept scouring a path over the seafloor and toward deeper water, nudged by currents, the wind and other factors. A breakthrough came in 2020, when the main bulk of A23a freed itself and started to pivot clockwise on its southeast corner. Before long, it was moving in earnest.

It took ice station Druzhnaya 1 out to sea

A map shows the locations of research stations in Antarctica, focusing on the coast of the Weddell Sea.

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U.S. Geological Survey

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Over the decades, the Filchner Ice Shelf has hosted several countries' research and mapping stations. For about 10 years, that included a Soviet station called Druzhnaya 1.

"When the A23 iceberg calved and floated off" in 1986, "Druzhnaya 1 was still on it," according to the U.S. Geological Survey.

In February 1987, a Soviet ship, the Kapitan Kondratyev, tracked the iceberg down and deployed a landing party aboard a helicopter "to salvage the most valuable equipment from the station," as researchers noted in a recent academic paper.

Life can get weird on an iceberg

If you were to set foot on A23a, Scambos said, you likely wouldn't realize it's an iceberg, floating loose at sea. Its scale would simply fill the horizon; any movement would be imperceptible. He should know. He has camped on icebergs before.

He recalls one odd thing: the disorientation.

"The ice that the base was built on would start to rotate, and that would make the sun do funny things in the sky," Scambos said. "It wouldn't be where it's supposed to be in the morning or in the evening or at night — even though it's 24 hours of daylight."

Over the years, he has heard from people who want to visit an iceberg. And Scambos says that while some of their goals were outlandish (as in, people hoping to declare unilateral sovereignty over an ice kingdom), a gigantic iceberg like A23a is pretty stable — with a big caveat.

"It's not impossible to land on it," Scambos said. "I mean, the upper surface is going to be smooth and snowy and relatively safe, at least for now."

But as the iceberg drifts north and finds warmer conditions, melting and flooding will begin.

"Eventually it will start to crack apart fairly rapidly towards the end," he said. "You wouldn't want to be on it at the end, because the whole thing would be breaking off in pieces and falling into the ocean."

Huge icebergs have drifted far distances

Most icebergs emerging from the Weddell Sea tend to drift slightly eastward toward South Georgia, some 1,000 miles east of the tip of South America.

If that happens to A23a, it could run aground again near South Georgia. But other icebergs, like its sibling A24, have moved more directly north, toward the Falkland Islands.

"Usually they're in the process of breaking up at that point," Scambos said, "although this one is likely to survive longer than most because it came from a colder part of Antarctica" and is thick, along with having a heavy buildup of snowfall.

If A23a doesn't get hung up in shallow and warmer waters, he added, "it could wind up drifting south of Africa into the Indian Ocean. They've even drifted all the way into the Pacific and wound up coming up on Chile, almost circumnavigating the globe. Some of the largest icebergs have done that in the past."

You can learn a lot from an iceberg

Massive icebergs like A23a scrape and scour the seafloor in shallow waters.

"There's a lot of life that lives in the bottom of the ocean that is just completely crushed, wrecked, when one of these things passes over," Scambos said. "That's it for the ecosystem that lives in that part of the ocean."

But the icebergs also give scientists an idea of the changes wrought when massive plates of ice, formed in the coldest parts of the world, suddenly find themselves in warmer conditions.

"The main scientific source of interest for the iceberg is sampling ocean surface waters behind, near, and just ahead of it," Em Newton of the British Antarctic Survey said of A23a, in a message to NPR. Researchers, she added, want "to understand the effects of temperature, changes to salinity, released nutrients, etc., along its path."

This part of the Southern Ocean is normally very poor in nutrients. An iceberg like A23a, Scambos says, can help change that by shedding nutrients it accumulated from Antarctica and stirring up deep water, possibly sparking a plankton bloom in its wake.

What about climate change?

News of the iceberg's peregrination comes after record warm temperatures and low levels of sea ice have been recorded around Antarctica in recent years.

"In February 2023, sea ice around Antarctica reached the lowest extent ever observed since the start of the satellite record in 1979," the NASA Earth Observatory said.

And in September, researchers at the National Snow and Ice Data Center reported the lowest winter maximum extent of Antarctic sea ice. It was found to be nearly 400,000 square miles below the previous low, set in 1986.

"But despite several recent years of low extents, the long-term trend for sea ice in southern polar waters is essentially flat," the NASA Earth Observatory said, adding, "it is the declines in sea ice at the other pole — in the Arctic — that are pushing the global sea ice trend downward."

Scambos agrees, noting that A23a came from a part of Antarctica that is fairly stable.

"These big icebergs are spectacular, but they're just the way Antarctica works. This is how an ice sheet works. It gathers snow, and the snow thickens and flows off into the ocean, and then pieces break off. And in Antarctica, those pieces are really, really large," he said.

"But the more important thing for people to be aware of is that Antarctica in other places is losing ice very rapidly," Scambos said, describing a dynamic that contributes to rising sea levels.

"And that actually is a much more serious problem."

The logic behind electric vehicles benefiting public health has long been solid: More EVs means fewer internal combustion engines on the road and a reduction in harmful tailpipe emissions. But now researchers have confirmed, to the greatest extent yet, that this is indeed what’s actually happening on the ground. What’s more, they found that even relatively small upticks in EV adoption can have a measurably positive impact on a community.

Whereas previous work has largely been based on modeling, a study published in January in the journal Lancet Planetary Health used satellites to measure actual emissions. The study, conducted between 2019 and 2023, focused on California, which has among the highest rates of EV use in the country, and nitrogen dioxide, one of the gases released during combustion, including when fossil fuels are burned. Exposure to the pollutant can contribute to heart and lung issues or even premature death. Across nearly 1,700 ZIP codes, the analysis showed that for every increase of 200 electric vehicles, nitrogen dioxide emissions decreased by 1.1%.

“A pretty small addition of cars at the ZIP code level led to a decline in air pollution,” said Sandrah Eckel, a public health professor at USC’s Keck School of Medicine and lead author of the study. “It’s remarkable.”

The group had tried to establish this link using Environmental Protection Agency air monitors before, but because there are only about 100 of them in California, the results weren’t statistically significant. The data also were from 2013 through 2019, when there were fewer electric vehicles on the road. Although the satellite instrument they ultimately used only detected nitrogen dioxide, it did allow researchers to gather data for virtually the entire state, and this time the findings were clear.

“It’s making a real difference in our neighborhoods,” said Eckel, who said a methodology like theirs could be used anywhere in the world. The advent of such powerful satellites allows scientists to look at other sources of emissions, such as factories or homes too. “It’s a revolutionary approach.”

Mary Johnson, who researches environmental health at Harvard University’s T.H. Chan School of Public Health and was not involved in the study, said she’s not aware of a similar study of this size, or one that uses satellite data so extensively. “Their analysis seems sound,” she said, noting that the authors controlled for variables such as the COVID-19 pandemic and shifts toward working from home.

The results, Johnson added, “totally make sense” and align with other research in this area.

When London implemented congestion pricing in 2003, for example, it reduced traffic and emissions and increased life expectancy. That is the direction this latest research could go too.

“They didn’t take the next step and look at health data,” she said, “which I think would be interesting.”

Daniel Horton, who leads Northwestern University’s climate change research group, also sees value in this latest work.

“The results help to confirm the sort of predictions that numerical air quality modelers have been making for the past decade,” he said, adding that it could also lay the foundation for similar research. “This proof of concept paper is a great start and augurs good things to come.”

Eckel hopes that, eventually, advances in satellite technology will allow for more widespread detection of other types of emissions too, such as fine particulate matter. That could even help account for some of the potential downsides of EVs, which are heavier and could therefore kick up more tire or brake dust than their gasoline counterparts. On the whole, though, she believes the picture overwhelmingly illustrates how driving an electric car is better not just for the planet but for people.

Research like this, she says, underscores the importance of continued EV adoption, the sales of which have slumped recently, and the need to do so equitably. Although lower-income neighborhoods have historically borne the brunt of pollution from highways and traffic, they can’t always afford the relatively high cost of EVs. Eckel hopes that research like this can help guide policymakers.

“There are concerns that some of the communities that really stand to benefit the most from reductions in air pollution are also some of the communities that are really at risk of being left behind in the transition,” she said.

Previous research has shown that EVs could alleviate harms such as asthma in children, and detailed data like this latest study can help highlight both where more work needs to be done and what’s working.

“It’s really exciting that we were able to show that there were these measurable improvements in the air that we’re all breathing,” she said.

Another arguably hopeful finding was that the median increase in electric vehicle usage during the study was 272 per ZIP code.

That, Eckel says, means there is plenty of opportunity to make our air even cleaner.

As water agencies across California grapple with the increasingly extreme effects of climate change, they’re also facing another problem: the incoming “silver tsunami.”

That’s the phrase coined by the industry to illustrate the fact that much of the workforce — largely baby boomers — that keeps our water flowing and safe are getting ready to retire.

Nationwide, about a third of the nation’s water workforce is eligible for retirement within the next decade, “the majority being workers with trade jobs in mission critical positions,” the Environmental Protection Agency wrote in a 2024 report.

Climate resilience needs a workforce

To deal with how pollution in our atmosphere is driving longer, hotter droughts, as well as increasingly intense rain when it does come, water agencies across Southern California are working to boost aging infrastructure and invest in more diverse water supplies, such as recycled water.

The lack of people to staff those changes is a problem for pretty much every water agency, urban and rural.

L.A. is the second-largest city in the nation and is spending billions on water recycling and stormwater capture, for example, but it has been struggling to fill needed positions at its four wastewater treatment plants.

The city of L.A. plans to clean all wastewater that flows to the Hyperion plant.

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Eric Garcetti via Flickr

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The city plans to treat nearly all of the Hyperion wastewater facility’s water to drinkable standards in the coming decades. To support that massive expansion, Hi-Sang Kim, the operations director at Hyperion, told LAist in 2022 the facility will need to boost its workforce by at least 30%.

For less urban water agencies, the challenge is even greater. The Eastern Municipal Water District serves close to 1 million people (and growing), as well as agricultural customers in western Riverside County and northern San Diego County.

They estimate as much as half of their workforce could retire within five years.

“Not only are we investing in new infrastructure, but we have aging infrastructure, so we are in dire need of technical skill sets to operate, maintain everything from treatment plants to pipelines, to pump stations,” said Joe Mouawad, the water district's general manager.

Jobs in the water industry — potable water and wastewater treatment operators, engineers, managers, skilled maintenance, public relations and more — are well paid and secure, Mouawad said, but it’s hard to fill the needed positions.

“We are finding it more challenging to backfill retirees,” he said. “It's not so much a lack of interest — I think it's a lack of awareness.”

Building a pipeline for water jobs

Those job gaps are why Eastern Municipal has become a leader in building the water workforce pipeline. For decades, the water district partnered with local schools to provide education about water conservation and what they do. But over the last decade, as the retirement forecast grew more dire, the agency has shifted to prioritize skills-based programming and partnerships with local high schools.

Local high school students tour Eastern Municipal Water District facilities in Perris.

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Courtesy Eastern Municipal Water District

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In 2013, they launched the Youth Ecology Corps program, for young adults between 18 and 24. Many who went through the program and paid internships are now full-time employees, said Calen Daniels, a spokesperson for the agency, who himself went through the program.

In recent years, the water agency has focused on younger potential future employees through a variety of Career and Technical Education programs at local high schools, including in automotive tech, engineering, agriculture, construction and information systems, said Erin Guerrero, Eastern Municipal’s public affairs manager overseeing its education programs.

“We're starting earlier and getting these kids real world experience,” Guerrero said.

Michelle Serrano teaches a two-year pre-apprenticeship Environmental Water Resources program at West Valley High School in Hemet. Students leave the program equipped to take the state-level certification exam for a job as a water treatment operator or water distribution operator once they turn 18.

Clayton Gordon, GIS mapping administrator at EMWD, talks to West Valley High students in the GIS Engineering certification summer program.

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Courtesy Eastern Municipal Water District

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Already more than 200 students have gone through the program since it launched last year. While local community colleges have similar Career and Technical Education programs, this is the first program of its kind targeting high schoolers in the region. Eastern Municipal hopes to expand to other area schools as well.

“Once the kids get out of the program, they're set if this is the direction they want to go,” Serrano said. “We have these students set for a job or a career for the rest of their life.”

She said the program is a gamechanger for students who don’t see themselves going to college or who are unsure of their future career path.

“We really are pushing hard for college, and that's a good push,” Serrano said. “However, we have kids who don't see themselves going to college.  It's opening up an amazing path for students who otherwise may not see a job direction.”

They’re not only finding a stable career path, she said, but fulfilling roles necessary to our society, Mouawad said.

“It's working for us,” he said, “and we want to see this serve as a model for the rest of the industry.”

It takes an icon to know an icon. If you haven’t seen the new Harry Styles video, check it out and you’ll recognize downtown’s Westin Bonaventure in a starring role. The hotel has been in plenty of movies — including True Lies — and now it’s the stage for Styles’ music video for his new single, “Aperture.” Fiona Ng takes you behind the scenes.

Speaking of cool movie settings, Kristen Stewart bought the abandoned Highland Theatre and plans to restore it to its original grandeur. Good news for film lovers.

On tap in the music space this week, Licorice Pizza recommendations include new wave goddess Dale Bozzio and her Missing Persons at the Whisky, rock goddess Melissa Etheridge at the Canyon Club in Agoura or Roxy Music’s Phil Manzanera in conversation onstage at the Roxy — all on Wednesday. Thursday, experimental hip-hop group Clipping is at the Observatory, Atmosphere is at the Novo, UK singer-songwriter Erin LeCount plays the Roxy and Long Beach Dub All Stars & Bedouin Soundclash hit the stage at the Wayfarer. Plus, Aloe Blacc kicks off the first of four nights at the Blue Note.

Elsewhere on LAist, you can find out about the push to make local beaches into a national park, read up on Sinners producer Sev Ohanian’s rise in Hollywood and find the best spots for a fun Galentine’s Day.

Events

Game Night

Tuesday, February 10, 7:30 p.m.
Cheerio Collective
5917 N. Figueroa Street, Highland Park 
COST: $25; MORE INFO

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Nik

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Unsplash

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Channel family game night with new friends over drinks in Highland Park at this classic board game night with Cat Darling Agency and Asian American Collective. Play Connect Four, Jenga and Uno while meeting some folks and enjoying a free drink!

Concert reading of Dogfight

Through Sunday, February 15
The Morgan-Wixson Theatre 
2627 Pico Plvd., Santa Monica 
COST: $23; MORE INFO 

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Joel Castro

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Morgan-Wixson Theatre

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Before there was The Greatest Showman, there was Dogfight. Benji Pasek and Justin Paul’s musical about a group of young Marines in San Francisco on the eve of the war in Vietnam is presented in a concert reading at Santa Monica’s Morgan-Wixson Theatre. Dogfight “explores themes of love, loss, and coming of age.”

OXY LIVE! with Robin Coste Lewis in conversation with Alexandra Grant

Tuesday, February 10, 7 p.m. 
Thorne Hall 
Thorne Road, Occidental College 
COST: FREE; MORE INFO

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Courtesy Oxy Arts

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National Book Award winner and former Poet Laureate of Los Angeles Robin Coste Lewis visits Occidental College for poetry and conversation with Oxy Live's host, celebrated visual artist and cultural collaborator Alexandra Grant (you may recognize her from excellent grantLove series… and her red carpet photos with beau Keanu Reeves). A book signing hosted by beloved Pasadena bookstore Octavia’s Bookshelf will follow, and attendees will have the opportunity to have their books signed by the author.

Dance at the Odyssey

Through Sunday, February 15
2055 S. Sepulveda Blvd., West L.A.
COST: $28; MORE INFO 

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Courtesy of Dance at the Odyssey

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Next weekend is the last weekend of Odyssey Theatre’s six-week-long Dance at the Odyssey festival, which features two world premieres: Silent Fiction from Intrepid Dance Project in Odyssey 2, and One World from choreographer Hannah Millar and her Imprints company in Odyssey 3.

Author Lindsay Jill Roth with Dr. Laura Berman

Thursday, February 12, 6 p.m. 
Zibby’s Bookstore
1113 Montana Ave., Santa Monica 
COST: FREE; MORE INFO

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Courtesy Zibby's

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It’s almost Valentine’s Day, and author Lindsay Jill Roth has the questions that will make your new (or long-term!) relationship last. Her new book, Romances & Practicalities, lays out 250 questions you should ask each other to make your love a time- and challenge-tested success — alongside Roth’s own long-distance love story and interviews with couples of all stripes. She’s in conversation with love, sex and relationship therapist Dr. Laura Berman at Zibby’s in Santa Monica.

An evening in conversation with Silversun Pickups’ Brian Aubert & Producer and Musician Butch Vig

Wednesday, February 11, 7 p.m. 
Sid the Cat 
1022 El Centro Street, South Pasadena
COST: $32.75; MORE INFO

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Sid the Cat

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Dice FM

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Hometown heroes Silversun Pickups are back with a new album and tour — catch them this week for free at Amoeba’s in-store show on Monday. Then dive deep at this conversation at the new Sid the Cat venue between singer Brian Aubert and producer and musician Butch Vg about the making of their new album, Tenterhooks. Plus, Lyndsey Parker of Licorice Pizza (friend of Best Things to Do) will moderate the chat.

Stronger Together: Nurturing Mind, Body, and Spirit

Monday, February 9, 6 p.m. to 8 p.m.
St. Monica Catholic Community Grand Pavilion 
725 California Ave., Santa Monica
COST: FREE; MORE INFO 

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Courtesy St. John's Foundation

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Recovery is an ongoing process, and the medical and spiritual communities of L.A. are reminding you they're here to help. Providence Saint John’s Health Center and St. Monica Catholic Community are marking the anniversary of the Palisades and Eaton fires with an evening of community, commemoration and healing.

Victor Villa brought his taco cart to Bad Bunny's Super Bowl Halftime performance.

Los Angeles residents likely know the name — Villa's Tacos is an award-winning taco business based in Highland Park. Villa began in his grandmother's front yard and now has brick-and-mortar locations in Highland Park, off Figueroa Avenue, and at Grand Park in downtown Los Angeles.

The restaurant has won L.A. Taco's Taco Madness championship three times (2021, 2022 and 2024) and earned a Michelin Bib Gourmand award for three consecutive years for its signature quesotacos.

A celebration of Latino culture

The entire performance was a celebration of Latin American culture's prominence in the United States, with Bad Bunny taking a moment to recognize Spanish-speaking countries worldwide.

Villa appeared during the opening number, "Tití me preguntó" from Bad Bunny's 2022 album "Un verano sin ti." In the sequence, Bad Bunny visits a piragüero cart — piraguas are iconic Puerto Rican shaved ice treats shaped like pyramids — before the camera pans to Villa and his cart, where Bad Bunny hands him the frozen treat. The moment bridges two beloved Latin American street food traditions: Puerto Rico's piraguas and L.A.'s taco culture.

'An absolute honor'

After the performance aired, Villa took to Instagram to express his thanks and call it a historic moment, He traced his journey from selling his first taco more than eight years ago to the Super Bowl stage.

"I want to give a huge thank you to @badbunnypr for hand selecting me & allowing me to represent my people, my culture, my family & my business," Villa wrote on Instagram.

'A product of immigrants'

As a first-generation Mexican American, he dedicated the moment to the immigrants who made it possible, emphasizing that Villa's Tacos is a product of immigration and that he is honored to represent his culture and all taqueros and Latinos everywhere. The post closed with shoutouts to Puerto Rico, Mexico, and all Latinos.

In August last year, Villa appeared on a Food Friday segment on LAist 89.3's AirTalk, bringing his freshly cooked tacos for host Josie Huang.