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  • The LAist guide to L.A. trees
    Pink flowers in bloom on the branches of a tree.
    Ceiba speciosa (the silk floss tree) is one of many summertime blooms you can look out for.

    Topline:

    Jacaranda season is upon us, and the iconic tree gets a lot of attention every year. But if you only pay attention to that bloom, you’re barely scratching the surface of the flowers you can see every year.


    Why it matters: Greater Los Angeles has an incredibly varied assortment of tree species, owing in part to its microclimates and the many varieties of trees that can adapt to live here, especially drought-tolerant one.


    We're here to help: Keep your eyes peeled this summer for these blooms, with our handy L.A. tree guide.

    You know them, you might love looking at them, and you definitely hate to park under them. Jacaranda season is upon us, and the iconic tree gets a lot of attention every year (see here if you need help tracking them down). But if you only pay attention to that bloom, you’re barely scratching the surface of the flowers you can see every year – there's no shortage of tree species planted around town.

    A pink and purple custom-painted car parks under a blooming jacaranda tree with purple flowers.
    If you're going to park under a jacaranda, it helps if your car matches the flowers.
    (
    Kevin Tidmarsh/LAist
    )

    Greater Los Angeles has an incredibly varied assortment of tree species, owing in part to its microclimates and the many varieties of trees that can adapt to live here, especially drought-tolerant ones. And while they may not all have the name recognition of the famous tree imported from South America, they’re just as eye-grabbing when you see them.

    Keep your eyes peeled this summer for these blooms, and if there’s a particular tree you’ve got to see flower yourself, you might want to consult a guide like this one for the city of L.A.. And if you’d rather see a bunch of trees at once, it could be worth a trip to somewhere like the L.A. County Arboretum or Descanso Gardens.

    To put some shine on these lesser-known tree species, we went ahead and polled some specialists from TreePeople and the L.A. County Arboretum for their favorite blooms.

    One protip from our experts: The range of time when you can see these trees in bloom can vary substantially from year to year, especially as climate change intensifies. This year’s blooming season, like last year’s, is later than usual owing to a wet winter, and trees of the same species might not bloom at exactly the same time. So if you don’t see any flowers, don’t fret – you can look somewhere else, and the same tree could be a lot more flowery in just a week or two.

    Crepe myrtles

    • Lagerstroemia
    A tree covered in magenta flowers is pictured amid other green trees. It's next to an asphalt path and a canopy, and mountains and a clear blue sky can be seen in the background.
    A crepe myrtle tree in the L.A. County Arboretum.
    (
    Courtesy Frank McDonough/L.A. County Arboretum
    )
    A tree in bloom with a skinny trunk and pink flowers. A power plant is in the background with a marine layer covering the sky.
    Crepe myrtles do well in lots of L.A.'s microclimates, including by the beach. A specimen in Redondo Beach is pictured here.
    (
    Kevin Tidmarsh/LAist
    )

    • When it normally flowers: Summer (may flower multiple times per year)
    • Native to: Oceania, South and Southeast Asia
    • About the tree: It shouldn’t be too hard to spot, since its hardiness makes it one of the most commonly planted trees in L.A., though TreePeople’s senior arborist Bryan Vejar said it’s fallen out of favor somewhat in recent years in part due to its widespread planting. And summer isn't the only time Frank McDonough, botanical information consultant of the L.A. County Arboretum, said that they're one of the best trees for fall foliage when cooler temperatures roll around.

    Southern magnolia

    • Magnolia grandiflora
    Two white flower buds, very close to blooming, are pictured against green leafs.
    Magnolia grandiflora getting ready to bloom.
    (
    Courtesy U.S. National Arboretum
    )

    • When it normally flowers: Spring through fall
    • Native to: Southeastern United States
    • About the tree: If you want to see some really big flowers, Vejar says this is one of the ones to look out for: They can get almost as big as a dinner plate. Magnolias are also a living fossil, being one of the first plants to evolve flowers tens of millions of years ago.

    Tipuana

    • Tipuana tipu
    A closeup image of crinkly, yellow-orange flowers on a tree.
    Tipuana tipu trees, like jacarandas, were originally brought to L.A. from South America.
    (
    Flickr user Cyril Nelson
    )

    • When it normally flowers: Early to late summer
    • Native to: South America
    • About the tree: This tree is a member of the legume family, but you might think it’s more closely related to maple trees if you saw their helicopter-like seeds, according to Vejar.

    Gold medallion tree

    • Cassia leptophylla
    A large, showy tree with clusters of bright yellow flowers.
    Cassia leptophylla, the Gold Medallion tree.
    (
    Courtesy Frank McDonough/L.A. County Arboretum
    )

    • When it normally flowers: Summer
    • Native to: Southern Brazil
    • About the tree: These are related to tipuanas, also being members of the legume family, and they produce long, skinny seed pods – though McDonough warned to be careful with these around kids, as they’re somewhat toxic.

    Chinese flame tree

    • Koelreuteria bipinnata
    Clusters of light pink, oval-shaped flowers are pictured against deep green foliage.
    This tree goes by many names - Chinese flame tree, Chinese lantern tree, the Bougainvillea golden-rain tree - but whatever you call it, it's beautiful, right?
    (
    Flickr user Surely Shirly
    )

    • When it normally flowers: Summer to fall
    • Native to: East Asia
    • About the tree: These trees can be somewhat invasive in humid regions or close to the coast, but otherwise Vejar says they’ve adapted well to the Los Angeles urban environment. They’re also known as Chinese lantern trees due to their papery, lantern-shaped seed pods.

    Strawberry tree

    • Arbutus unedo
    A small cluster of white flower blossoms pictured against oval-shaped leaves.
    The strawberry tree can produce small white flowers year-round. It's just as remarkable for its fruit - which is much harder to eat than actual strawberries.
    (
    Flickr user laredawg
    )

    • When it normally flowers: Year-round
    • Native to: Mediterranean Europe
    • About the tree: This tree, an evergreen, has a deep red, exfoliating bark that’s almost as remarkable as its bell-shaped flowers. If you spot one, Vejar said you may also see some hummingbirds nearby. And the fruit is edible – though if you try it, be warned that it may be quite gritty and tough to chew.

    Elderberry

    • Sambucus racemosa)
    A small bee pictured on ornate, creamy white flowers.
    Don't forget: Pollination is why plants evolved to produce flowers.
    (
    Courtesy National Park Service
    )

    • When it normally flowers: Summer
    • Native to: Most of North America
    • About the tree: While this widespread species is perhaps best known for its use in Native American medicine, it also produces beautiful flowers in white, cream and yellow. It’s currently in its blooming season, said Vejar.

    Queensland bottle tree

    • Brachychiton rupestris)
    A green and burnt orange tree with a thick trunk, pictured in front of green trees.
    The Queensland bottle tree is one of a few Australian trees featured on this list.
    (
    Courtesy Frank McDonough/L.A. County Arboretum
    )

    • When it normally flowers: Spring to summer
    • Native to: Queensland, Australia
    • About the tree: These trees grow rather quickly and, being from a very dry part of Australia, have a mechanism where they can store water inside, similar to a cactus. According to McDonough, this is one of the most stable trees you can plant owing to its low center of gravity.

    Desert willow

    • Chilopsis
    A closeup image of two white flowers with five petals each. The center section of the flowers has strips of yellow.
    Desert willows are usually covered in pink flowers when they're in bloom, but they can also come in white.
    (
    Courtesy Charlie McDonald/U.S. Forest Service
    )

    • When it normally flowers: Late spring to summer
    • Native to: Mexico and southwestern U.S.
    • About the tree: These are related to jacarandas, and are one of the few species native to the area that is appropriate for an urban environment. Vejar said now is a good time to seek out this flower, as they’re just starting to bloom.

    Catalina ironwood

    • Lyonothamnus
    A tall ironwood tree covered in green foliage, with skinny leaves.
    The Catalina ironwood's exfoliating reddish bark and leaves are remarkable any time of year, but you can also spot it covered with white flowers when it's in bloom.
    (
    Flickr user brewbooks
    )

    • When it normally flowers: Summer
    • Native to: Channel Islands
    • About the tree: Being native to coastal regions, Vejar said the best place for this species to grow is by the coast, though it’ll still survive in the Inland Empire and other warmer areas.

    Floss silk tree

    • Ceiba speciosa
    Pink flowers with a white center and prominent stamen.
    This specimen of ceiba speciosa was started from seed at the L.A. Arboretum.
    (
    Courtesy Frank McDonough/L.A. County Arboretum
    )

    • When it normally flowers: From August to December, depending on variety
    • Native to: South America
    • About the tree: The tree is loved by horticulturists for its prominent flowers and low water use – though its tendency to drop branches without warning has earned it the nickname “palo borracho” (drunken branch), said McDonough.

    Lacebark tree

    • Brachychiton discolor
    A lawn is pictured with a tree trunk in the distance. Hundreds of flowers are pictured on the lawn near the tree.
    Brachychiton discolor's flowers are beautiful on the tree, but they're just as showy when they drop to the ground.
    (
    Courtesy Frank McDonough/L.A. County Arboretum
    )

    • When it normally flowers: Summer to fall
    • Native to: Eastern Australia
    • About the tree: These flowers will eventually drop from the tree like jacarandas (and other flowering trees) – but with the lacebark tree, that’s actually a plus, as they produce a pleasing thwack sound when they hit concrete or asphalt. “I like to just put myself in a nice meditative state and listen to these things,” McDonough said. “There's no way to put any kind of word on it. It has a very calming effect on you.”

    Plumeria

     A cluster of light pink, spiral-esque flowers with five petals each.
    This is just one of many, many varieties of plumerias you can see at the L.A. Arboretum and around town.
    (
    Courtesy Frank McDonough/L.A. Arboretum
    )

    • When it normally flowers: Spring to fall, depending on variety
    • Native to: Tropical and subtropical parts of the Americas, from Florida to Brazil
    • About the tree: While this plant commonly associated with Hawaii is often grown as a shrub, McDonough said they’re more accurately classified as small trees. The L.A. Arboretum currently has the largest collection of plumeria in the U.S., and you can celebrate the flower at their Plumeria Festival this July 19 and 20.

    Red flowering gum

    • Corymbia ficifolia
    A closeup picture of bright red-orange, sea anemone-like flowers. Some are in bloom, while others are about to emerge.
    A personal favorite flower produced by the red flowering gum tree.
    (
    Kevin Tidmarsh/LAist
    )

    • When it normally flowers: Year-round, but especially in July and August
    • Native to: Western Australia
    • About the tree: All right, I’ll admit it – this tree is my own addition, and I saved my personal favorite for last. I’m a big fan of flowers that look otherworldly, and these anemone-like blooms really take the cake. Like many of the trees listed, it can also grow in urban conditions that other species would balk at – it’s very “punk rock” in that way, as Vejar put it.

  • LA leaders react with growing outrage
    A man holds up a sign that says "NATIONAL GUARD LOL" as people disperse from smoke in the background.
    A protester displays a poster as tear gas is used in the Metropolitan Detention Center of downtown Los Angeles on June 8, 2025.

    Topline:

    Community leaders and politicians in Los Angeles are responding in outrage after an ICE agent shot and killed a woman in Minnesota on Wednesday.

    Why it matters: The fatal ICE shooting of 37-year-old Renee Good has sparked anger and fear in Los Angeles, which has been an epicenter of federal immigration enforcement since the summer.

    What are some groups saying? Jorge-Mario Cabrera with the Coalition for Humane Immigrant Rights, or CHIRLA, says the killing was upsetting but not surprising. " Los Angeles has been witness of the escalating aggressiveness of these federal agents against the community," he told LAist.

    Read on... for how local politicians are reacting.

    Community leaders and politicians in Los Angeles are responding in outrage after an ICE agent shot and killed a woman in Minnesota on Wednesday.

    The fatal ICE shooting of 37-year-old Renee Good has sparked anger and fear in Los Angeles, which has been an epicenter of federal immigration enforcement since the summer.

    Jorge-Mario Cabrera with the Coalition for Humane Immigrant Rights, or CHIRLA, says the killing was upsetting but not surprising.

    " Los Angeles has been witness of the escalating aggressiveness of these federal agents against the community," he told LAist.

    Homeland Security Secretary Kristi Noem has defended the shooting, saying Good was trying to run agents over with her car. That account has been disputed by eyewitnesses, the mayor of Minneapolis and other officials. Bystander video also challenges the federal narrative, according to MPR News.

    L.A. politicians have joined a chorus demanding justice for Good. Mayor Karen Bass posted on X, saying that ICE agents are waging "a purposeful campaign of fear and intimidation" on American cities.

    "The senseless killing of an innocent and unarmed wife and mother by ICE agents today in Minneapolis is shocking and tragic and should never have occurred," she said in the post.

    L.A. County Supervisor Janice Hahn called on Noem to withdraw ICE from U.S. cities.

    “These ICE agents are undertrained and trigger happy and everyone who has seen this video knows ICE murdered this woman,” she said in a statement.

    Some protesters also gathered outside the federal building in downtown L.A. Thursday morning to condemn the killing.

  • Sponsored message
  • Meet Crystal Hernández, the group's only woman
    A line of mariachi musicians in matching royal blue charro suits with gold embroidery stand side by side, each with a hand over their heart. Yellow bows with the Los Angeles Rams logo and ‘Corona Extra’ branding are pinned to their jackets. In the foreground, a woman with a yellow hair ribbon and gold earrings looks ahead with a composed expression inside a stadium setting.
    Crystal Hernández is the violinist for the Mariachi Rams and the only woman in the group.
    Topline:
    As the Rams head to the NFL playoffs this weekend, we’re shining the spotlight on a beloved fan favorite: the Mariachi Rams. Violinist Crystal Hernández, the only woman in the band, tells LAist it’s exciting to see how fans — even those cheering for the opposing team — have embraced their presence at SoFi Stadium. She said it  shows how involved and integral Latino culture is to L.A.

    “There's no boundary. There's no border,” she said. “It’s all about love and joy and bringing excitement to the game.”
    Why it matters: The Rams are the first NFL team to have an official mariachi. The group was formed in 2019 by Hernández' father, the renowned mariachi Jose Hernández. Since then, a handful of teams, including the Houston Texans, have begun incorporating mariachi bands as part of their cultural programming.

    Game day: The Mariachi Rams’ musical flare has captivated audiences, blending hip-hop and rock-and-roll sounds with traditional mariachi. They typically perform two or three times throughout the game, starting with a Mexican classic like “El Rey” and segueing into local favorites like “Low Rider” from the Long Beach band War and Tupac’s “California Love.”

    Ten mariachi musicians stand in two rows inside SoFi Stadium, posing for a group photo. They wear matching royal blue charro suits with ornate gold embroidery and bright yellow bow ties featuring Los Angeles Rams and Corona Extra logos. Stadium seating and the large video board are visible behind them, with the field below, creating a formal team portrait in a football stadium setting.
    The Mariachi Rams blend hip-hop and rock and roll sounds with traditional mariachi. They typically perform two or three times throughout each game.
    (
    Courtesy Los Angeles Rams
    )

    Keeping traditions alive: Crystal Hernández also works with L.A. County students at the nonprofit Mariachi Heritage Society. She said it’s important to pass the tradition down to kids — and especially young girls who may not otherwise see themselves represented onstage.

    “If you're a mariachi, you're also an educator,” she said. “It's our responsibility to teach the next generation so this beautiful Mexican tradition doesn't die out.”

    Read more: Mariachi Rams bring music to SoFi NFL games

    This story was produced with help from Gillian Moran Pérez.

  • Still caring for Eaton Fire displaced animals
    A dog, which appears to be a pit-bull, is looking through the metal bars of a kennel.
    A dog being sheltered at Pasadena Humane on Jan. 10, 2025. Some fire-impacted animals are still in there a year later.

    Topline:

    Pasadena Humane helped more than 1,500 pets and wildlife during the fire and in the aftermath, providing shelter, medical care and emergency resources. The organization also helped reunify pets and livestock with the humans who love them.

    Why now: San Diego Humane Society took in more than 50 animals from Pasadena Humane to clear space during the fire, which officials said was critical for their operations during the crisis. So, Pasadena Humane returned the favor Wednesday, helping to take in dogs rescued from a recent hoarding case down south.

    The backstory: Several animals affected by the fire are still in the organization’s care. They include four dogs at Pasadena Humane, as well as three cats and a guinea pig in foster homes.

    Go deeper: How Pasadena Humane mobilized to take in pets and wildlife escaping the Eaton Fire

    Chris Ramon’s corner office at Pasadena Humane boasts a sweeping view of the San Gabriel Mountains peaking over Pasadena and Altadena.

    Ramon, the organization’s president and CEO, said this week that he couldn’t help but remember what the same window looked like a year ago, when the Eaton Fire “changed our lives forever.”

    “The mountains that we're looking at right now and admiring were being engulfed in flames,” Ramon told LAist. “For us as an organization, that's what kicked off one of the most devastating situations and experiences we've ever had to navigate through.”

    A man wearing a white long-sleeve button down under a black vest is standing in front of a window overlooking a green park and mountains in the distance.
    Chris Ramon, president and CEO of Pasadena Humane, said he couldn't help but remember what this window looked like a year ago during the Eaton Fire.
    (
    Makenna Sievertson
    /
    LAist
    )

    Pasadena Humane helped more than 1,500 pets and wildlife during the fire and in the aftermath, providing shelter, medical care and emergency resources. The organization also helped reunify pets and livestock with the humans who love them.

    Several animals affected by the fire are still in the organization’s care. They include four dogs at Pasadena Humane, as well as three cats and a guinea pig in foster homes.

    “Several people who lost their homes are still trying to figure out what their next step is,” Ramon said. “We told the community, and everybody who was affected by the Eaton Fire, that we would be here and we would provide help.”

    Pasadena Humane marked the one-year anniversary of the fire this week with a show of gratitude for another Southern California shelter who helped the organization weather the storm.

    Pasadena officials are supporting San Diego Humane Society as it deals with a hoarding case by taking in adoptable dogs. They described it as a “full-circle moment.”

    ‘Unimaginable’ toll

    In the first three weeks after the Eaton Fire erupted, Pasadena Humane took in about 1,000 animals that were injured, displaced and separated from their families.

    Patients of all shapes, sizes and scales were welcome.

    Bearded dragons were set-up with warming lamps, koi fish were placed into proper ponds and a horse was housed in Pasadena Humane’s garage when Ramon ran into its owner walking miles down Raymond Avenue.

    Pasadena Humane search-and-rescue teams went into burn zones looking for animals in need of assistance. Those teams reunited pets with owners in an effort to make sure the organization had enough space for those that didn’t have anywhere else to go — including an Altadena neighborhood cat whom the residents named Skinny Minnie.

    A Black man wearing a tan uniform with a badge is carrying a large bag of cat food in one hand and a gallon of water in the other through the remains of a burned-out property and home in Altadena.
    Pasadena Humane teams looked for pets and wildlife in Eaton burn zones, dropping off food and water along the way.
    (
    Courtesy of Pasadena Humane
    )

    The cat was brought into Pasadena Humane with severe injuries as the fire was still raging. Her whiskers were singed and her body was so badly burnt that staff “couldn't tell what color she was,” Ramon said.

    They weren’t sure if Skinny Minnie would survive.

    The cat stayed in Pasadena Humane’s intensive care unit for several months, which by that time had become a makeshift burn ward.

    Skinny Minnie endured the invasive medical treatments used to tend to her wounds, later revealing a gentle personality, seeking cuddles and scratches from caretakers or veterinary staff, Ramon said.

    After months of treatment, the cat was reunited with a pair of Altadena residents.

    It was the “win that we needed,” Ramon said.

    How to support Pasadena Humane

    Chris Ramon, president and CEO, says the organization is committed to helping Altadena rebuild.

    Here’s how you can help support Pasadena Humane's work:

    Paying it forward

    San Diego Humane Society took in more than 50 animals from Pasadena Humane to clear space during the fire, which officials said was critical for their operations during the crisis.

    So, Pasadena Humane returned the favor Wednesday.

    It welcomed nine dogs from San Diego to free up resources as the organization deals with a large-scale hoarding case. A tenth dog was also expected to arrive, but was adopted.

    Nina Thompson, San Diego Humane Society's director of public relations, told LAist the organization was bursting at the seams caring for 725 dogs before 40 more were rescued from an apartment in La Mesa.

    How to support San Diego Humane Society

    The organization's four campuses were already operating well over capacity before the 40 dogs and puppies were removed from the 500-square-foot home, according to Thompson.

    "This transport is a huge help," she said.

    The San Diego dogs are available for adoption at Pasadena Humane as of Thursday. Two of those dogs have already found their forever homes, according to the organization.

  • US exits 66 orgs after Trump signs order

    Topline:

    The Trump administration will withdraw from dozens of international organizations, including the U.N.'s population agency and the U.N. treaty that establishes international climate negotiations, as the U.S. further retreats from global cooperation.

    Why now: President Donald Trump on Wednesday signed an executive order suspending U.S. support for 66 organizations, agencies, and commissions, following his administration's review of participation in and funding for all international organizations, including those affiliated with the United Nations, according to a White House release.

    What were these organizations? Most of the targets are U.N.-related agencies, commissions and advisory panels that focus on climate, labor, migration and other issues the Trump administration has categorized as catering to diversity and "woke" initiatives.

    Read on... for more about the organizations and what this means.

    The Trump administration will withdraw from dozens of international organizations, including the U.N.'s population agency and the U.N. treaty that establishes international climate negotiations, as the U.S. further retreats from global cooperation.

    President Donald Trump on Wednesday signed an executive order suspending U.S. support for 66 organizations, agencies, and commissions, following his administration's review of participation in and funding for all international organizations, including those affiliated with the United Nations, according to a White House release.

    Most of the targets are U.N.-related agencies, commissions and advisory panels that focus on climate, labor, migration and other issues the Trump administration has categorized as catering to diversity and "woke" initiatives. Other non-U.N. organizations on the list include the Partnership for Atlantic Cooperation, the International Institute for Democracy and Electoral Assistance and Global Counterterrorism Forum.

    "The Trump Administration has found these institutions to be redundant in their scope, mismanaged, unnecessary, wasteful, poorly run, captured by the interests of actors advancing their own agendas contrary to our own, or a threat to our nation's sovereignty, freedoms, and general prosperity," Secretary of State Marco Rubio said in a statement.

    Trump's decision to withdraw from organizations that foster cooperation among nations to address global challenges comes as his administration has launched military efforts or issued threats that have rattled allies and adversaries alike, including capturing autocratic Venezuelan leader Nicolás Maduro and indicating an intention to take over Greenland.

    U.S. builds on pattern of exiting global agencies

    The administration previously suspended support from agencies like the World Health Organization, the U.N. agency for Palestinian refugees known as UNRWA, the U.N. Human Rights Council and the U.N. cultural agency UNESCO. It has taken a larger, a-la-carte approach to paying its dues to the world body, picking which operations and agencies it believes align with Trump's agenda and those that no longer serve U.S. interests.

    "I think what we're seeing is the crystallization of the U.S. approach to multilateralism, which is 'my way or the highway,'" said Daniel Forti, head of U.N. affairs at the International Crisis Group. "It's a very clear vision of wanting international cooperation on Washington's own terms."

    It has marked a major shift from how previous administrations — both Republican and Democratic — have dealt with the U.N., and it has forced the world body, already undergoing its own internal reckoning, to respond with a series of staffing and program cuts.

    Many independent nongovernmental agencies — some that work with the United Nations — have cited many project closures because of the U.S. administration's decision last year to slash foreign assistance through the U.S. Agency for International Development, or USAID.

    Despite the massive shift, the U.S. officials, including Trump himself, say they have seen the potential of the U.N. and want to instead focus taxpayer money on expanding American influence in many of the standard-setting U.N. initiatives where there is competition with China, like the International Telecommunications Union, the International Maritime Organization and the International Labor Organization.

    The latest global organizations the U.S. is departing

    The withdrawal from the U.N. Framework Convention on Climate Change, or UNFCCC, is the latest effort by Trump and his allies to distance the U.S. from international organizations focused on climate and addressing climate change.

    UNFCC, the 1992 agreement between 198 countries to financially support climate change activities in developing countries, is the underlying treaty for the landmark Paris climate agreement. Trump — who calls climate change a hoax — withdrew from that agreement soon after reclaiming the White House.

    Gina McCarthy, former White House National Climate Adviser, said being the only country in the world not part of the treaty is "shortsighted, embarrassing, and a foolish decision."

    "This Administration is forfeiting our country's ability to influence trillions of dollars in investments, policies, and decisions that would have advanced our economy and protected us from costly disasters wreaking havoc on our country," McCarthy, who co-chairs America Is All In, a coalition of climate-concerned U.S. states and cities, said in a statement.

    Mainstream scientists say climate change is behind increasing instances of deadly and costly extreme weather, including flooding, droughts, wildfires, intense rainfall events and dangerous heat.

    The U.S. withdrawal could hinder global efforts to curb greenhouse gases because it "gives other nations the excuse to delay their own actions and commitments," said Stanford University climate scientist Rob Jackson, who chairs the Global Carbon Project, a group of scientists that tracks countries' carbon dioxide emissions.

    It will also be difficult to achieve meaningful progress on climate change without cooperation from the U.S., one of the world's largest emitters and economies, experts said.

    The U.N. Population Fund, the agency providing sexual and reproductive health worldwide, has long been a lightning rod for Republican opposition, and Trump cut funding for it during his first term. He and other GOP officials have accused the agency of participating in "coercive abortion practices" in countries like China.

    When President Biden took office in January 2021, he restored funding for the agency. A State Department review conducted the following year found no evidence to support GOP claims.

    Other organizations and agencies that the U.S. will quit include the Carbon Free Energy Compact, the United Nations University, the International Cotton Advisory Committee, the International Tropical Timber Organization, the Partnership for Atlantic Cooperation, the Pan-American Institute for Geography and History, the International Federation of Arts Councils and Culture Agencies and the International Lead and Zinc Study Group.
    Copyright 2026 NPR