The Brief

On a recent triple digit summer day, I made my way out to a dusty field at UC Riverside, the research center of California’s citrus universe.

The UC Riverside Citrus Research Center is lined with row after row of citrus trees. It's also home to the Climate Ready Tree test plot.

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Row after row of tangerines, oranges and pomelos —11,000 in total — baked under a heat dome. Off in the distance, wildfire smoke passed in front of the San Bernardino Mountains, which had been covered in thick snow just a few months ago.

The dusty field is just one of the many plots that the university uses to trial new trees, grow budwood for distribution and come up with solutions for devastating problems like Huanglongbing, a bacteria driven greening disease that’s threatening trees world wide.

However, I was there to check out a block of 48 trees sitting along a fence that look nothing like the thousands of citrus around them. Inconsequential at first glance, you could easily imagine them along any road in Los Angeles, but that’s kind of the point. The trees are being tested to see if they can survive our hellishly hot and dry future driven by climate change.

Where, how and why these trees are being tested

There are 12 different types of trees and four of each at the UC Riverside test plot.

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It’s a collection of 12 different species — four of each — pulled from around the world and being run through the gauntlet by the U.S. Department of Agriculture. Planted seven years ago, they were given supplemental water to help them get established, but since then they’ve had to survive on their own through record-setting heatwaves and drought years.

The Texas, or escarpment, live oak was struggling and nearly dead at the UC Riverside plot. It's reportedly doing better at a plot along the coast.

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The trees are being assessed for a number of factors including attractiveness, whether they provide good shade, how much work it takes to maintain them (less pruning means lower maintenance costs) and whether they can survive without much water.

The experiment is expected to run for at least 20 years, but visit the plot today and it's clear which trees are thriving. Surprisingly, just because a tree comes from a hot climate doesn’t mean it’s going to do well.

“What kind of choices are we going to be able to make in the future?,” said Natalie van Doorn, U.S. Forest Service scientist and co-creator of the experiment known as Climate Ready Trees. “Are we going to have enough water to make that decision that yes we want to keep watering our trees?”

If not, we’ve got to have viable candidates that we know will thrive and provide critical tree cover, which for residents, can be a matter of life or death.

Why L.A.'s hundreds of thousands of trees matter so much

Click for more details on the benefit of trees from TreeKeeper

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Trees are an absolutely critical part of our infrastructure. They have a marked impact on human and ecosystem health.

The red push pistache had one of the densest canopies at the test site.

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Trees can:

• Help drop temperatures in urban areas by as much as 45 degrees
• Reduce energy use
• Suppress noise
• Improve air quality
• Sequester water
• Help provide homes to all sorts of creatures, all according to the Environmental Protection Agency.

Which is why any sort of major threat to the more than 700,000 street trees planted across the city of L.A. is of major concern, and that's what climate change is doing.

Much of our urban forest, as it’s known, was planted over the past 100 years as the region developed. As people migrated from other parts of the country they often wanted to plant the trees that they were familiar with, though that could mean species from wetter climates.

The sweetgum tree, whose spiky seed balls you’ve likely stepped on while walking through a park, is a decent example. It’s originally from the eastern area of the country and doesn’t love drought conditions, thriving in the moist soils of the Mississippi Delta. More than 25,000 of them are planted across the city, according to a tree inventory.

A red pistache

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The flowers of the desert willow are a beautiful pink.

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“I think in general, many of urban forests contain what I would call legacy plantings that occurred after World War II, when people were building homes and moving in and planting trees. And so those trees now, maybe 40, 50, 60 years old, they were planted when water was abundant. They've grown accustomed to having water and of course they're not necessarily as well adapted to hot dry conditions,“ said Greg McPherson, retired research scientist with the U.S. Forest Service, and one of the creators of the experiment.

We were long able to satisfy a broad range of moisture requirements because we imported and dumped all but unlimited gallons of water all over our landscapes, often in an effort to keep our lawns green.

That is until this past decade, when drought and water cuts became the norm.

What happens to water-stressed trees

The flowers of the maverick mesquite.

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The flowers of the desert museum palo verde.

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Water-stressed trees are more susceptible to pathogens and insect attacks, and are, predictably, more likely to die than healthy happy trees. One only need look to the Sierra Nevada to understand how bad things can get. More than 100 million trees have died over the past decade in part due to drought stress.

There are no clear mortality estimates for LA’s urban forest over the past decade, so we can’t say whether extreme conditions have led to more tree deaths in our area. And unless we had a widespread, granular tree tracking program, it’s going to be tough to determine why an individual tree is lost.

There are hundreds of thousands of street trees across the city, and urban trees face all sorts of challenges trees in our forests don’t. Yard tools can damage them and lead to the introduction of disease, poor pruning practices can lessen tree resilience and sometimes people just cut them down because they want to redo their yards.

That said, conditions are becoming more challenging for our urban forest and we could be on the path to greater die off as a result. Longer, more sustained droughts are becoming more common, meaning less water for irrigated landscapes, and more extreme heat days mean trees require more water to survive.

While this palo blanco, originally from northern Mexico, was looking OK, another one was struggling substantially.

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Odds are we haven’t seen the worst of it. Even though we’ve had a handful of water cuts over the past decade, lawns are still green and trees still often getting supplemental irrigation.

Given how bad cuts got before this wet year, it’s easy to imagine a point where outdoor watering is limited to the point that lawns start to finally die off and the trees that rely on that same supplemental water start to die too.

“The roots of those trees are near the surface because turf is irrigated in frequent, but not heavy doses. So the water stays in the upper surface of the soil and that’s where the roots are,” McPherson said.

Depending on the variety, trees can take decades to become established and provide meaningful shade. If we’re planting something today with the expectation that it’ll survive in the lawn-less future we’re charging towards, it’s important to find species that can thrive on minimal supplemental inputs.

Our need for more resilient trees

McPherson’s efforts to find what the experiment is calling ‘climate-ready trees’ began about two decades ago, when he recognized what the existential threat of warming trends could mean for our urban forests.

The Desert Museum Palo Verde doesn't provide as much shade as the other trees, but it's nice to look at and likes hot weather.

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“I began in 1999 when I got a 18 wheeler full of desert trees from Arizona shipped up and planted them all around Sacramento and Davis, and really started evaluating their performance,” said McPherson.

Some, like the Palo Verde, even though it can thrive in hot climates, struggled.

“It just grew so fast that the top would outgrow the roots and it would blow over in our wind,” he said. “Some of them worked, some didn’t. But that led to the idea that we need to evaluate more species”

The rosewood tree had a sizable canopy that provided good shade.

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In 2015 he and van Doorn got a grant to begin trialing trees at a test site at UC Davis, and eventually along the coast in Irvine, and in the scorching hot environment of Riverside.

So which trees have been thriving?

Though the experiment still has a number of years to go, I made the trip to the Riverside plot because out of the two Southern California plots, I wanted to see which trees were doing the best in the most extreme conditions.

Many were thriving, but three stood out because they looked healthy, cast wonderful shade and were quite attractive. They’d be wonderful along any street.

The Red Push Pistache was the first to catch my eye in part because it had one of the thickest canopies and beautiful leaves. It’s originally from Arizona.

The red push pistache seemed to be thriving.

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The canopy of the rosewood, originally from India, rivaled the pistache and the Desert Willow, native to the southwest, put out gorgeous pink flowers.

A rosewood tree.

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The desert willow was thriving at the test plot.

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The Honey Mesquite, also native to the southwest, was covered in bright yellow flowers and teaming with so many bees that the whole tree appeared to vibrate.

The honey mesquite can be invasive in some environments.

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The ghost gum, a type of eucalyptus from Australia was also well established. However, because of their oil content eucalyptus tend to burn violently in wildfires. Maybe not the best choice for fire prone locations. And the tecate cypress is native to the region and looks like it could be trimmed into a hedge. It's struggled a bit at the plot.

The ghost gum is a type of eucalyptus from Australia.

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The Tecate Cypress is native to Southern California and could work well in a hedge.

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Then there were the ones that appeared to need more maintenance, like the Palo Verde, which I see planted in drought tolerant landscapes across the area. It can thrive in hot conditions, and with a bit of pruning it might’ve looked better. Problem is it didn’t provide much shade.

And, to me, the Texas Live Oak looked to be an outright failure, as they were close to dead. It's reportedly done better in cooler conditions at the team's other test site in Irvine.

A desert museum Palo Verde

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A live oak

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Go see the trees yourself

Each tree in the private research plot has a counterpart located in parks across the region, in an effort to help determine how they do when they’re not babied.

“If you were looking at reference versus park sites, the reference sites are doing better as far as survivorship and growth. In the park sites there just is a lot of variability,” said van Doorn.

If you’re curious about how they’re doing, you can actually go visit them in person.

Locations of tree testing in inland Southern California

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Coastal testing locations for trees.

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For instance, here’s a map of tree locations if you live near Woodley Park in the San Fernando Valley.

Or if you’re over on the west side, the trees might be performing completely differently at a spot like Vista Del Mar Park.

If you want a more granular look at all of the trees, the researchers issued an update three years ago here.

If you have any favorite drought tolerant trees, shoot me a note below.

During a rally Monday night in Nebraska, President Donald Trump was going through his usual insistence that gas prices are only temporarily high and worth it as part of his war on Iran.

Then he added a new wrinkle, floating the idea that Tehran could “take out” two major American cities.

“They could take out a city,” he said. "Let ‘em take out Los Angeles. Let ’em take out San Diego.”

He continued as the crowd laughed and cheered: “This is a very small price to pay, and it’s going to be over with very soon.”

California Gov. Gavin Newsom, a Democrat who may run for president in 2028, answered on X, calling Trump “deranged and dangerous.”

L.A. Mayor Karen Bass, who is running for reelection against Councilmember Nithya Raman, called the president's statements dangerous in a social media post.

"The role of a president is to protect the country, not to actively threaten it and encourage attacks on American lives," she wrote.

Sam Diego Mayor Todd Gloria, in another post on X, said "San Diego is not collateral damage. We are not expendable. And we are never a 'small price to pay."

Trump has a history of denigrating U.S. cities, especially the largest ones that lean heavily Democratic. Los Angeles was among the cities where Trump deployed federal military personnel for what he said was a crackdown on crime, despite local authorities not wanting the troops.

At a recent North Carolina campaign rally, Trump said the state’s cities are “blood-soaked killing fields.” North Carolina’s violent crime rate ranks in the middle third of states, according to FBI statistics.

LAist staff contributed to this report.

It’s official: Skydance-owned Paramount has closed its $81 billion takeover of Warner Bros. Discovery.

The companies completed the deal on Tuesday, ushering in a new Hollywood giant with the now shorter “Skydance” nametag. The merger brings two of America’s oldest moviemaking studios together. And HBO Max, titles ranging from “Harry Potter” to “Sinners” and even networks like CNN find themselves under the same roof as Paramount+, CBS and the likes of “Top Gun” and “The Godfather.”

All of them will come under the helm of billionaire David Ellison, and his new co-CEO Ynon Kreiz. That further concentrates power in an industry already run by just a handful of major players. Ellison’s Skydance bought out Paramount for $8 billion just last year, and set its sights on Warner — an even bigger fish — very soon after.

What followed erupted into a tumultuous, roughly year-long fight over Warner’s fate.

Skydance Corp. emerges from one of the biggest tie-ups ever in the media and entertainment industry. Including billions of dollars in debt, the Warner acquisition amounted to nearly $111 billion.

“Today is a historic day, not just for Skydance but for our entire industry," Ellison said in a statement Tuesday. "We couldn’t be more excited to get to work.”

Here’s a look at some of the key moments that got us here.

Netflix v. Paramount

The early days of Paramount's quest for Warner turned into a messy bidding war.

Months after disclosing it was open to selling parts or even all of its business, Warner initially struck a studio and streaming deal with Netflix back in December. But Skydance-owned Paramount, which claimed Warner management “never engaged meaningfully” with its previous proposals, soon launched a hostile counterbid aimed at taking over the entire company — including networks like CNN and Discovery.

The Hollywood giants spent much of early 2026 in a heated back-and-forth over who had a stronger offer on the table, with Warner leadership repeatedly backing Netflix as its preferred suitor. But Paramount eventually upped its offer to buy all of Warner for $31 per share, and Netflix opted to bow out of the race. Warner and Paramount inked a mutual merger agreement by late February.

The response from Hollywood

Hollywood was closely watching the fight over Warner's future. And from awards shows to online petitions, A-list celebrities and other creatives made their voices known.

In April, thousands of movie stars, writers, directors and other professionals announced their “unequivocal opposition” to the Paramount-Warner merger. The open letter — which was signed by long-outspoken critics of the deal like Jane Fonda and Mark Ruffalo, as well as Hollywood heavyweights from Denis Villeneuve to J.J. Abrams — warned of fewer jobs and “less choice for audiences in the United States and around the world.”

Meanwhile, some other stars lined up to back Paramount as Ellison reiterated his commitments to the movies. At CinemaCon this past spring, the company debuted a glossy mini movie about the studio directed by Jon M. Chu and narrated by Tom Cruise — who ended the spot atop the iconic Paramount water tower, with the words “the future is paramount and the future looks pretty great from here." Director James Cameron also doubled down on his support of Ellison.

The prospect of a new Warner owner also loomed over awards season this year, from #BlockTheMerger pins to more subtle nods in acceptance speeches. When accepting her Emmy last month, “Remarkably Bright Creatures” actor Sally Field — who also signed the open letter in opposition to the Paramount-Warner deal — stressed that “unique storytelling matters” and “we can’t let those voices be silenced, or compromised or merged.”

Many industry critics were also outspoken when Netflix's studio and streaming deal was on the table, with particular focus on the future of movies staying in theaters.

Trump and CNN

Trump has regularly attacked reporting he deems unfavorable at CNN (most recently attempting to bar the outlet from the White House altogether). And over the course of the Warner buyout, his administration wasn't afraid to chime in about hopes for a new owner.

In December — days after Paramount launched its hostile bid for Warner — the president said that CNN spread “poison and lies,” adding that “I think the people who have run CNN for the last long period of time are a disgrace" and "it’s imperative that CNN be sold.”

The White House took aim again at CNN in March, over the network's coverage of the U.S.-Israeli war against Iran. At the time, Secretary of Defense Pete Hegseth told reporters that “the sooner David Ellison takes over that network, the better.”

Ellison has said editorial independence will be maintained at CNN, and under a since-finalized settlement with the states, the company also agreed to form a “News Editorial Independence Board." But critics point to turmoil already seen at CBS under Skydance ownership — and aren’t convinced this new body will move the needle much, because Ellison is set to have ample oversight over appointments. Outside this board, however, the combined company is retaining Mark Thompson as CNN’s editor-in-chief.

Trump has separately continued to criticize CBS coverage under Skydance ownership. Still, the president has held a long relationship with the billionaire Ellison family. Paramount's chief reportedly hosted a dinner in Washington in Trump’s honor back in April, on the same day Warner shareholders gave their greenlight for the merger. And in June, just two days after the U.S. Justice Department said it wouldn't intervene in the deal, Ellison attended an Ultimate Fighting Championship match on the White House lawn for Trump’s 80th birthday (streamed by Paramount+).

Gulf money

To help fund its Warner buyout, Paramount racked up billions of dollars in financial backing from three Gulf countries: Saudi Arabia, Qatar and the United Arab Emirates. The Federal Communications Commission approved the company’s request for sizeable indirect ownership from those foreign investors.

Paramount previously disclosed it expected those funds to indirectly own nearly 50% of equity interests — but no voting rights — of what is now the larger Skydance. But the company asked for clearance of up to 100% to account for potential future investments, which the FCC granted, citing in part that access to more capital would strengthen the broadcast industry and was therefore “in the public interest.”

Critics — including FCC’s sole Democratic Commissioner, Anna Gomez — have called the move alarming and unprecedented. They argue that amount of money opens the door to behind-the-scenes influence.

The final antitrust fight

Paramount cleared antitrust hurdles for its Warner acquisition from regulators worldwide over the summer, including the Trump administration's Justice Department.

But in July, Democratic attorneys general from 12 states — led by California's Rob Bonta — sued to block the merger, alleging the combined company would “extinguish competition” and lead to fewer choices for consumers, particularly movie theatergoers and cable customers across the U.S.

The Writers Guild of America followed suit. And Paramount agreed to put its Warner buyout on ice well into next year so the challenges could head toward a larger antitrust trial.

Settlement agreements emerged in September. The states' terms, eventually approved by a judge, include pledges from the company to increase film production in the U.S. over the next five years, commit millions of dollars to a fund aimed at supporting workers displaced by the merger and again establish new editorial monitoring of CNN and CBS.

Settling these challenges marked a key hurdle ahead of closing the deal. Critics decried the deal as capitulating to corporate pressure and said the remedies were too weak.

Federal forecasters say this year the planet could see the strongest El Niño event on record. It's already being called "Super El Niño" and even "Godzilla El Niño." El Niño is a natural climate pattern that has far-reaching impacts across the planet, potentially affecting hundreds of millions of people.

Where those impacts happen can vary drastically from one El Niño to the next. Here are the basics of what this historic event could bring.

What is El Niño?

El Niño occurs every two to seven years. It develops when a vast amount of water in the eastern Pacific Ocean warms up around the equator. That water releases massive heat, redistributing warmth from the ocean to the atmosphere. That shifts weather patterns around the world.

The flip side of El Niño is a La Niña, which is marked by relatively cool water in the tropical Pacific around the equator. These events are responsible for some of the biggest weather variability the planet experiences.

El Niño is like dropping a rock in a pond, says Daniel Vimont, professor of atmospheric and oceanic sciences at the University of Wisconsin-Madison. "Even though you're not where the rock hit, you still may feel the effects of those waves," he says. "El Niño is the same thing, except it's an enormous rock in our entire Earth's system, and we feel the response."

How strong is it?

Sure, "Godzilla El Niño" is catchy, but technically, NOAA forecasters say this year's El Niño will fall into the "very strong" category. It's measured by the temperature of the ocean in a particular region off South America. The warmer the water, the stronger the El Niño. When that water is more than 2 degrees Celsius warmer than average, it qualifies as a "very strong" El Niño.

The last strong events were in 2015-16, 1997-8 and 1982-83. El Niños typically peak in November and December, but already, this El Niño is the strongest ever measured for this time of year. NOAA forecasters expect it to last through early 2027.

What will the impacts be globally?

All that added heat in the atmosphere raises temperatures globally. El Niño years tend to be the hottest on record. Forecasters say this year may get close to taking the top spot, but it's very likely that temperature records could fall in 2027. The planet is already warmer due to climate change, because emissions from burning fossil fuels are trapping more heat in the atmosphere.

El Niño also shifts rainfall patterns globally, raising the chances for destructive flooding in some parts of the world. Other regions get drier, exacerbating droughts. Both impacts can be catastrophic to agriculture around the world. The United Nations World Food Programme estimates that El Niño could push at least 49 million more people into acute food insecurity by the end of 2027.

What will the impacts be in the U.S.?

In El Niño years, the southern U.S. tends to see more intense rainfall because the jet stream shifts to the south. That raises the risk of floods along rivers and in cities. Still, in the Southwest, more rain could alleviate drought and recharge underground aquifers.

"El Niño tends to juice up those storms so that you get more really strong rain events," says Martin Hoerling, meteorologist and adjunct lecturer at the University of Colorado Boulder. "So if you were running a deficit in your water supply, a big El Niño, especially like the one we're having, can really get you into recovery mode that otherwise might have taken you years."

The northern half of the country gets warmer and drier, something that could exacerbate the current drought in the Intermountain West. Some states experience mixed effects during El Niños, like California. The state saw historic flooding in the 1997-98 El Niño, but was drier than average during the 2015-16 one. Climate experts say the current El Niño is so strong, it's more likely California will experience extreme rain.

El Niños can also lead to fewer hurricanes in the Atlantic Ocean, since it's more difficult for the storms to form. In the Pacific Ocean, hurricanes can get more frequent, fueled by warmer ocean water. Already this year, hurricanes have intensified rapidly in the Pacific, and Hawaii has had close calls with several hurricanes that brought destructive rain and wind.

Can we blame it all on El Niño?

Certain weather changes are common during El Niños, but there are no guarantees that extreme weather events this winter will match those predictions for every region.

"El Niño is like loading the dice," Vimont says. "While we're loading the dice for a certain type of response from El Niño, we still know that in any given year, there are still natural fluctuations that may mask that or cause the response to be slightly different than what we might expect."

In addition to that natural variability, weather events are also being affected by climate change. The most intense storms are already producing more rainfall in most of the U.S., since a warmer atmosphere can hold more water vapor. Heat waves and droughts are also getting more intense due to rising temperatures. Climate experts say El Niño and climate change impacts will both play out this winter, but while El Niño will fade, the effects of climate change will continue.
Copyright 2026 NPR

Fans of Hollywood Burbank Airport have a new way to rag on LAX-ers.

Burbank’s ambitious new terminal building has been completed on time and on budget. The long-awaited structure, known as the Elevate BUR project, is ready for prime time.

It’s slated to open to the public on Oct. 13, with a new entrance at Winona Avenue and Hollywood Way. On Monday, LAist got a look inside.

Why now?

The $1.3 billion terminal is a decade in the making. The project comes from Burbank’s Measure B, which voters passed in 2016.

Burbank Mayor Tamala Takahashi said the new building will replace the terminal that opened in 1930, which will eventually be demolished.

“ The old building is not to code, so it can’t be reused. It’s too close to the airstrip. That’s why we had to do this in the first place,” she said.

The new facility is more than 50% larger. Plus, it has a slate of improvements needed to meet FAA safety standards and state building requirements. That includes new seismic and accessibility features and more runaway space.

The new terminal will have the same 14 gates but with a lot more room.

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The entrance to TSA. Once you're in, you either go left or right to your gate number after screening.

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Takahashi said the new terminal will open up  capacity because all of the gates will be able to accommodate modern planes.

“What that means is that we’re going to have the same number of flights, the same number of planes, the same number of gates, but more people going through the airport every day,” she said.

There’s one thing travelers can count on to stay the same: You’ll still be able to board your plane on the tarmac.

The Hollywood touch

Tyron Hampton, president of the Burbank-Glendale-Pasadena Airport Authority, which owns the airport, said it’s time everyone knows about L.A.’s best insider tip for flying.

“ This is no longer a secret,” he said. “We want people to come here. We want people to see this experience.”

Hampton said the new building has space for more amenities, which feature local retailers like Jones Coffee and Octavia’s Bookshelf.

The specs on the ceiling are supposed to mirror one of Marilyn Monroe's dresses.

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Art is also woven into the design. Brent Kelley, who worked on the architecture at Corgan, said one of their themes was classic Hollywood.

For example, small dots on the ceiling are meant to evoke Marilyn Monroe’s glimmering dress during her iconic “Happy Birthday, Mr. President” moment.

A “silver screen” canopy extends across the building outside, alongside an installation that honors the time the buildings were covered in camouflage during World War II.