The Brief

On a beautiful July day earlier this year, out of the blue, catastrophe visited residents of Rolling Hills Estates on the Palos Verdes Peninsula.

It’d been about four months since the last heavy rains, but the precipitation from one of the wettest years on record appears to have been working its way deep into the earth.

It appears that raindrops percolated through the silt and sand and past deposits of volcanic ash in the Altamira Shale, before settling on layers of montmorillonite rich clays, lifted from the ocean during the Pliocene some three million years ago.

An aerial view of upscale homes destroyed by a landslide on Palos Verdes Peninsula in July, 2023.

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It's possible that the particles of clay then took on the water, compromising the ability of the earth beneath the homes to stick together, leading them to separate like an unevenly stacked layer cake. The constituent parts of the neighborhood – the homes, streets and sewer – began to move, pulled by gravity down an embankment into the canyon below.

A preliminary report compiled for the city of Rolling Hills Estates by the geotechnical firm GeoKinetics said that a "high level of precipitation" was likely the main factor behind the slope failure. Though, it should be noted, other inquiries are ongoing.

If you know a bit about the area, landslides should come as little surprise, especially considering there are roughly 150 others that've have been documented there.

A view of upscale homes destroyed by a landslide on Palos Verdes Peninsula in July 2023.

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“Is the geology conducive to land sliding along the Palos Verdes Peninsula? The answer is yes,” said Jeremy Lancaster, state geologist and director of the California Geological Survey.

Given that another year of heavy rain might be on the way, influenced by a strong El Niño, what are the odds we’ll see even more homes sliding into canyons below?

Can we predict landslides?

There are two key types of landslides that you should be aware of: shallow and deep seated landslides.

The one's I'm usually on LAist screaming about are the shallow ones, particularly in hilly areas that've just burned. They're a bit more predictable because we know that after a fire, hillsides are covered in a waxy, water repelling layer and have had most of their vegetation removed. So, when rain falls from the sky, there's not much to slow it down, keep it from knocking dirt loose, picking up speed and turning into a huge destructive wall of water, like what we saw in Montecito in 2018.

When reporting on landslide risk during major storms, I'm usually on the lookout for recently burned areas anticipated to receive an inch of rain per hour, because heavy rainfall makes the shallow slides more likely.

Debris from a mudslide covers a home on January 10, 2018 in Montecito, California.

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Deep–seated landslides, like what we often see in the Palos Verdes Peninsula are a whole other beast,

We know that they typically need three things to occur: steep slopes, weak rocks and some sort of triggering mechanism, such as earthquakes or water (the peninsula has all three), to get them going.

But unless there's apparent movement on the surface, they're terribly difficult to anticipate because it's unclear what's going on deep in the ground. As soon as you're dealing with layer upon layer of material from different epochs all stacked upon each other, things get much more complex.

All it takes is one weak layer of water loving clay to give out between a whole bunch of big strong rock, for a whole hillside to come down.

Terrifyingly, a deep slide can occur months after a rainy season ends because it can take water a long time to slowly percolate through the earth to get to one of those weak layers.

"Because these landslides are at greater depths, it's really difficult geologically to have precise controls on when and how exactly that motion starts. But generally we expect that an above average rainfall seasons, particularly ones that are back to back, the probability or likelihood of motion is there," said Matthew Thomas, a research hydrologist with the USGS landslide hazards program.

It can take many cycles of wetting and drying for one of those weaker layers to become a problem.

Take for instance, bentonite clay found throughout the peninsula. According to Lancaster, while the clay is quite strong when it's dry, when it's wet it weakens and expands slightly, allowing for a slight amount of creep. Over time, cracks can grow and fill with water, further jeopardizing the hill structure. Add a whole bunch of weight and steep slopes and things can destabilize over time.

So if you can't predict a slide, what's there to look out for?

Listen for creaks and groans, look for evidence of movement, including broken water pipes and growing cracks.

It’s not always rain that’s responsible. Broken sewer or irrigation lines can also compromise layers and add weight to a hillside and cause it to give out.

Workers search for victims of a mudslide that left four people dead and 20 missing January 11, 2005 in La Conchita, California.

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What risk does El Niño bring?

El Niño is sometimes linked to wetter winters here in Southern California, which means more opportunity for water to percolate deep underground and destabilize hillsides.

There’s no guarantee that slides will follow a heavy rain year, but it does increase the risk that one will happen, especially in areas that’ve already seen slides, or have active slides ongoing.

According to the preliminary report prepared for the city, there were no earlier slides detected where the July 8 slide occurred in the Rolling Hills Estates area.

What can be done?

Preventing the percolation of water deep into the soil is key. Good surface drainage is an important. Concrete can be used to fill cracks that open up to prevent further infiltration. And in places like Abalone Cove, they've also installed dewatering wells, which actively pump water out.

At the behest of the city of Rolling Hills Estates, the homeowners association began winterization work in November, according to a letter provided by Assistant City Manager Alexa Davis. It includes various measures meant to clear water away from vulnerable parts of the hillside, including temporary drainage, grading and sandbags.

If you’re nervous about your property, you need to be on the lookout for growing cracks and listening for sounds of the earth moving. If your doors have suddenly fallen out of plumb and your windows aren’t opening, you may be facing a catastrophic issue.

If it’s not an emergency, but you're curious about what's going on beneath your home, hire an engineer to look at the geotechnical report relevant to your property.

A coalition that advocates for renters and unhoused residents is demanding the city of Los Angeles halt its planned rollout of a new state law that gives local officials authority to dismantle more recreational vehicles the city deems a problem.

Assembly Bill 630 gave L.A. County authority to dispose of abandoned or inoperable RVs that have an estimated value of $4,000 or less, an increase over the previous $500 threshold.

Supporters of the new law argue that abandoned RVs often pose public safety, health and environmental hazards.

The law goes into effect in the new year. It was signed by Gov. Gavin Newsom in October. That same month, L.A. City Councilmembers approved a motion instructing various city departments to “immediately implement” the new RV enforcement program.

The problem, according to attorneys representing the American Civil Liberties Union of Southern California, the Legal Aid Foundation of Los Angeles and the Western Center on Law and Poverty, is that the new law only authorizes L.A. County to launch the program, not the city of Los Angeles.

“The City's planned implementation of AB 630 is illegal,” attorneys wrote in a demand letter sent to L.A. City Attorney Hydee Feldstein Soto last week.

The lawyers who sent the letter represent the CD11 Coalition for Human Rights, an organization that includes individuals living in RVs in Los Angeles and advocates for renters and unhoused residents in the city’s Westside.

The letter gives L.A. city officials a deadline on Dec. 29 at 5 p.m. to confirm in writing that the city will not implement the new law, or at least that it will wait until the issue can be resolved in court.

No lawsuit has been filed yet.

L.A. City Attorney Hydee Feldstein-Soto did not immediately respond to LAist’s requests for comment on the demand letter.

Assemblymember Mark González sponsored the California assembly bill “in partnership” with Los Angeles Mayor Karen Bass.

Bass’ office did not immediately respond to requests for comment.

City vs. county authority

Councilmember Traci Park, who represents westside communities including Venice and Culver City, sponsored the City Council motion to “immediately implement” the new RV law.

It instructed the city administrative officer to work with the city’s Department of Transportation, city attorney and Police Department to start enforcing AB 630 on L.A.'s streets.

Park told LAist that the city needs to be able remove unsafe vehicles from public roads.

“These vehicles create unacceptable health, environmental, and safety risks, putting entire neighborhoods, critical infrastructure, and sensitive environmental areas at risk,” Park said in a statement. “Residents want solutions, not ideological wars, delay tactics, and frivolous lawsuits.”

The City Council approved an amended motion this month, instructing city staff to move forward with implementing the new law as they prepared informational reports for various City Council committees.

The attorneys challenging L.A.’s actions say the City Council moved too quickly, without realizing the legal limitations of the new statute.

“The City Council passed this motion without really fully understanding the consequences of it or even what it said it all,” said Shayla Myers, an attorney with Legal Aid Foundation of Los Angeles told LAist.

“As a result of that, it’s a policy that could really harm Angelenos, but also could result in costly litigation,” she continued.

The legal challenge centers on the language stating that the “Counties of Alameda and Los Angeles may implement a program” to dispose of recreational vehicles. The statute makes no mention of cities having this authority.

Lawyers for the coalition warn that if the city proceeds with implementation, it would be acting beyond its legal authority under state law.

Thousands of RV dwellers 

There are nearly 6,500 people living in more than 4,000 RVs parked across the city of L.A., according to last year’s homeless count estimates.

L.A’s city administrative officer is involved in coordinating and managing the removal of RVs from city streets, along with LAPD and the city’s Transportation Department.

It oversaw more than 370 RV clearing operations between May 2022 and June 2024, according to a CAO report. As part of those operations, the city issued more than 1,000 citations, towed more than 600 vehicles and moved nearly 200 people into housing, the report said.

City Administrative Officer Matt Szabo did not respond to LAist’s request for comment on AB 630.

Three L.A. City Council members voted against the city’s AB 630 implementation plan: Hugo Soto-Martinez, Isabel Jurado and Eunises Hernandez.

Hernandez’ communications director Naomi Villagomez Roochnik told LAist the councilmember remains opposed to the city-led effort.

“Moving forward without clear legal authority exposes the City to unnecessary litigation and cost during an already severe budget crisis,” she said. “It is imperative we get that clear legal analysis before the city moves forward in any way.”

The state law goes into effect Jan. 1.

President Donald Trump's long-anticipated executive order to loosen U.S. restrictions on marijuana promises to bring immediate relief for cannabis businesses — but only in some respects. And although rescheduling it as a lower-risk drug is touted as opening a new era for cannabis research, experts say it's not as simple as flipping a light switch.

"It's hard to see the big headlines of, 'Marijuana rescheduled to [Schedule] III; marijuana research will open,'" says Gillian Schauer, executive director of the nonpartisan Cannabis Regulators Association, which includes agencies from 46 states. "You know, those things are not true as of now."

That's because on its own, Trump's Dec. 18 order isn't enough to rewrite federal drug policy that has stood for more than 50 years.

"The Controlled Substances Act [of 1970] does not grant any president the authority to unilaterally reschedule a drug," Schauer says. Such changes are historically made through either a rulemaking process, or an act of Congress.

Many details will shape how the administration enacts Trump's order, affecting the timeline and scope for easing marijuana restrictions. But when it does happen, rescheduling won't automatically revoke federal laws targeting marijuana, and interstate marijuana commerce would remain illegal, Schauer says.

It's not yet known how other policies might change.

"We don't know what will happen to federal drug testing requirements," Schauer says, until agencies issue guidance.

Here's a rundown of other key questions raised by the rescheduling order:

The time frame depends on which path the DOJ takes

Trump's order directs Attorney General Pam Bondi to "take all necessary steps to complete the rulemaking process related to rescheduling marijuana to Schedule III" of the Controlled Substances Act "in the most expeditious manner in accordance with Federal law … "

The directive evokes the process that started under former President Joe Biden. Under his administration, both the Department of Health and Human Services and the Justice Department advanced a proposal to reclassify pot from Schedule I, meaning it has no medical use and a high potential for abuse, to the lower-risk Schedule III, which includes ketamine, Tylenol with codeine, and anabolic steroids.

The Trump administration could resume the process that was already underway under Biden. But the new executive order's mention of the Controlled Substances Act's Section 811 hints at a potential shortcut.

"That allows the attorney general to move a drug to whatever schedule they deem is best, without going through the usual steps that are needed to reschedule a drug," Schauer says.

The streamlined process was meant to ensure the U.S. can do things such as complying with international drug treaty obligations. But a historic precedent also links it to cannabis: In 2018, it was used to schedule the CBD epilepsy drug Epidiolex, months after it became the first U.S.-authorized purified medicine derived from marijuana. The drug was placed in Schedule V, the least restrictive schedule.

President Donald Trump displays an executive order reclassifying marijuana as a less dangerous drug in the Oval Office on Dec. 18.

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Will the DOJ call for public comment?

The Trump administration's approach to administrative hearings and public comment periods would also help determine the pace of rescheduling.

"I would anticipate, if they use that [expedited] option, that we would not see a comment period," shortening the process, Schauer explains.

But rescheduling could take longer if the Justice Department follows the traditional, and lengthy, notice-and-comment process.

Again, Bondi has options that could speed things up. She could choose to issue a final rule after a public comment period, for instance, or do so without a comment period.

"Some of the calculation for that may be on the legal end," Schauer says. Noting that some anti-marijuana groups are vowing to file legal challenges to block rescheduling, she adds that the DOJ will likely have to balance Trump's call for expedience with the need to defend its actions in court.

If the rule is published for comment, interest would likely be intense: In 2024, the DEA's earlier proposed rescheduling rule for marijuana attracted more than 43,000 comments.

Cannabis firms would get tax relief, but credit cards remain forbidden

Sam Brill, CEO of Ascend Wellness Holdings, a multistate dispensary company, says rescheduling could bring a cascade of positive changes to his industry. But one benefit could come immediately, he says.

"The biggest thing that happens overnight is the 280E, the restrictive punitive tax code that is set on us," would no longer apply to marijuana businesses, he says.

Like other businesses, Brill's company is obligated to pay taxes on income. But because their core product is a Schedule I drug, the IRS says that under Internal Revenue Code Section 280E, they're blocked from claiming common tax deductions, exposing them to a higher effective tax rate.

Section 280E "does not allow us to basically deduct normal expenses that everyone else can deduct," Brill says. "I can't deduct the rent for my stores, the cost of my employees in those stores, my interest expense."

Brill says that some cannabis companies, including his, say 280E should not apply to them — but the IRS disagrees. As a result, Brill says, his company sets aside a large reserve fund in case the IRS comes after them.

"For 2024 alone, the value of this reserve" was about $38 million, Brill says, "which includes interest and penalties."

Brill hopes marijuana's changing status might also eventually lead to other restrictions falling, especially the inability of cannabis operations to accept credit cards. Most financial institutions refuse to provide basic banking services to state-authorized marijuana businesses, due to potential liability.

"The lack of the use of a credit card is really one of the biggest challenges for customers," he says. Citing the importance of payday, Brill says: "For us, Friday by far is the biggest day every single week because this is a cash business."

Medical research 

Scientists welcomed news in 2023 that the Biden administration was moving toward reclassifying marijuana, and Trump says his move will boost medical research. But both then and now, there are caveats.

One benefit of the new rules is that they wouldn't require marijuana researchers to go through the onerous process of obtaining a Schedule I license, and they would also ease rigorous laboratory regulations.

"You have very stringent requirements, for example, for storage and security and reporting all of these things," neuroscientist Staci Gruber, of McLean Hospital in Massachusetts and Harvard Medical School, told NPR last year.

But another obstacle promises to be more stubborn: finding marijuana to study. The U.S. requires researchers to obtain marijuana from a handful of sources, which is itself an improvement over decades in which they were compelled to use one facility based at the University of Mississippi.

And, as Schauer notes, federal rules about sourcing marijuana have been decided separately from the controlled substances schedule.

"This does a little to make research easier," Schauer says of the current rescheduling effort. "But there's a lot that will still be challenging in researching cannabis unless we see a lot of agency policies change and adjust."
Copyright 2025 NPR

Tortillas sold in California are going to have a new ingredient, one that’s intended to help nurture healthy infants.

Starting Jan. 1, a new law will take effect requiring most tortillas and corn masa products sold in the state to contain folic acid, a vitamin that’s important to infant health.

Latinas in California are far less likely than other women to get enough folic acid early in pregnancy — a gap that can lead to life-altering birth defects.

State data show that, between 2017 and 2019 – the latest years for which state data is available – about 28% of Latinas reported taking folic acid the month before becoming pregnant. White women took the vitamin at a higher rate, with 46% of them reporting consuming folic acid, according to the California Department of Public Health.

This puts Latinas at higher risk of having a baby born with neural tube defects — defects of the brain and spinal cord. Some examples of that are conditions like spina bifida and anencephaly.

Research has shown that folic acid can reduce birth defects by up to 70%. That’s why it’s found in prenatal vitamins. But because women may not find out they are pregnant until weeks or months after, public health has long recommended that folic acid also be added to staple foods.

In 1998, the U.S. required manufacturers to fortify certain grain products with folic acid, such as pasta, rice, and cereals, to help women of reproductive age get the necessary amounts. Since that rule took effect, the rate of babies born with neural tube defects dropped by about a third, according to the Centers for Disease Control and Prevention.

But even with the addition to these foods, birth defect rates among babies born to Latinas have been consistently higher. In search of a more culturally appropriate addition, in 2016, the federal government allowed makers of corn masa to add folic acid to their foods – but didn’t require it.

Joaquin Arambula, a Democrat from Fresno, who authored the law said leaving folic acid out of corn masa products, used in many Latino staple foods, was a “real oversight.”

Now, with the implementation of Assembly Bill 1830, California is the first state to require folic acid in corn masa products. The law requires manufacturers that do business in the state to add 0.7 milligrams of folic acid to every pound of flour and to list the addition in their nutrition labels. The law makes exemptions for small batch producers like restaurants and markets that might make their own tortillas from scratch.

Months after California’s law was signed, Alabama passed its own version. Its law goes into effect in June 2026.

Some large manufacturers have already been adding folic acid to their products for years. Gruma, the parent company of Mission Foods, said it started fortifying its foods back in 2016, when the federal government first allowed it. A company spokesperson said Gruma “has a longstanding commitment to supporting legislative fortification initiatives” and supports the new laws in California and Alabama.

Supported by the California Health Care Foundation (CHCF), which works to ensure that people have access to the care they need, when they need it, at a price they can afford. Visit www.chcf.org to learn more.

A new year means a new parade of classic characters and works entering the public domain.

Under U.S. law, the copyright on thousands of creations from 1930 — including films, books, musical compositions and more — will expire at the stroke of midnight on Jan. 1, 2026, meaning they will be free to use, share and adapt after nearly a century.

"I think this is my favorite crop of works yet, which is saying a lot," says Jennifer Jenkins, the director of Duke University Law School's Center for the Study of the Public Domain, who has compiled an annual list of public domain entrants for over a decade.

This year's treasure trove features famous faces like the original Betty Boop — whose iconic hoop earrings originally took the form of floppy dog ears — and the initial version of Disney's Pluto, who first went by the name Rover.

"That's not only exciting in itself, but it's really an opportunity to look back at the history of these two incredible animation studios, Fleischer and Disney, and how their styles are imprinted in the DNA of today's cartoons," Jenkins says. "That's just a fun rabbit hole."

Literary highlights include William Faulkner's As I Lay Dying, the full version of Dashiell Hammett's The Maltese Falcon, Watty Piper's The Little Engine that Could, the first four books of the Nancy Drew detective series and The Murder at the Vicarage, Agatha Christie's first Miss Marple mystery.

The movie selection spans war stories, musicals, thrillers, Westerns, comedies and more, coming from directors including Alfred Hitchcock, Howard Hughes and Salvador Dalí. Among them are All Quiet on the Western Front, Animal Crackers starring the Marx Brothers, 1931 best picture winner Cimarron, and two Marlene Dietrich films, Morocco and The Blue Angel.

Several movies on the list feature future stars in their early days: Bing Crosby's first feature-film appearance in King of Jazz, Greta Garbo's first talkie Anna Christie and The Big Trail, John Wayne's first leading role.

Notably, Jenkins says, the films on this year's list all predate the Hays Code, a set of self-imposed studio guidelines that banned subjects from profanity, violence and nudity to interracial relationships and "lustful kissing" in movies from 1934 to 1968.

The musical compositions include "Georgia on my Mind," "Dream a Little Dream of Me" and four songs by Ira and George Gershwin: "I Got Rhythm," "I've Got a Crush on You," "But Not for Me" and "Embraceable You." Among the artworks are Piet Mondrian's "Composition with Red, Blue and Yellow" and the Jules Rimet Cup by Abel Lafleur — the original trophy of the FIFA World Cup from 1930 to 1970.

Jenkins says her four-person team spent well over 80 hours poring through the archives to compile this year's list. Writing the online summary was another feat, one she says kept her busy from 5 a.m. to 5 p.m. over the course of two weeks.

But she thinks the crick in her neck is a small price to pay for shining a light on the value of public domain in "nurturing creativity and enabling access."

"What's really fun is that people are excited about it — people well beyond our world of copyright lawyers — especially when they start recognizing these works," she says. "And for me, one of the most exciting things is when you revisit a work that you loved in a different period of your life and get to look at it again."

The public domain unleashes new possibilities 

You may be wondering: Isn't there already a pretty famous Nancy Drew movie from 2007, and a cult-favorite Betty Boop musical on Broadway now?

Yes. But those productions had to get permission and pay money to adapt those characters at the time, Jenkins explains.

"What's different now is if you and me are really good at choreographing dance moves and writing lyrics for songs, we could make our own musical featuring Betty Boop 1.0 and we can go in whatever crazy directions we want," she says.

As a matter of fact, a Betty Boop horror movie is already in the works, following a string of 2025 scary movies starring villainous versions of the freshly non-copyrighted Peter Pan, Bambi and Popeye. Also, a Minnie Mouse slasher is due for release in 2026.

Not all adaptations have to be dark: Think West Side Story drawn from Shakespeare's Romeo & Juliet, Percival Everett's reimagining of Huckleberry Finn in the 2024 book James and, of course, the Wizard of Oz-inspired Wicked movies.

And public domain isn't just good news for those who want to create art, but also for those who simply want to consume it.

"It goes well beyond creativity to availability, to preservation, to being able to use things freely in school," Jenkins explains.

For example, Jenkins says, books tend to become cheaper — and available in more editions — once they enter the public domain.

A lot of creative works from the 1930s haven't been in print for decades, and ownership questions have kept many from being available online at all — at least while they were under copyright.

"Publishing houses go out of business, people die, ownership changes hands," Jenkins adds. "I mean, who on Earth owns the copyright to those random works from … almost a century ago? And when they go into the public domain, you don't have to worry about that."

Another benefit is that third parties can now digitize old films and sound recordings that have physically deteriorated over the decades — allowing for their preservation and wider distribution.

Jenkins says that's especially exciting for teachers, who can make use of these resources for free at a time when school budgets are shrinking. And even those who are not regularly in a classroom can learn a lot from this sampling of works.

"Now we're all having these conversations with our chatbots and wondering what it means that we're reacting to artistic work or to words that are generated by a machine, it was just really striking to feel the humanity behind all these works from 1930," Jenkins says, explaining that they were all created by people living in the shadow of World War I.

While there are many unresolved questions around AI and intellectual property, Jenkins says one thing is clear: "Human authorship is a requisite for copyright." So if a bot writes your Boop musical, don't expect it to be protected.

Copyright 2025 NPR