The Brief

Nine months ago, the oceans became bathwater. As historically hot sea temperatures forced corals to expel the microorganisms that keep them alive, the world endured its fourth mass coral bleaching event, affecting more than half of all coral reefs in dozens of countries. As the temperatures continued to climb, many died.

It was an early taste of what would become a year marked by the consequences of record-breaking heat. And now it’s official: Earlier this month, when much of the world’s attention was turned to the U.S. presidential election, scientists from the European Union’s Copernicus Climate Change Service crowned 2024 as the hottest year on record — and the first year to surpass the 1.5 degrees Celsius benchmark. And that’s with a little more than a month left to go in the year.

“This marks a new milestone in global temperature records...," said Samantha Burgess, Copernicus’ deputy director, in a press release. Burgess called the announcement “virtually certain” because, barring an extreme event like a volcanic eruption that blocks the atmosphere’s excess heat, it’s nearly impossible for temperatures to fall enough for 2024 not to break the record.

It’s against this backdrop that world leaders, policymakers, and activists descended on Azerbaijan for the 29th United Nations Climate Conference of the Parties, to tout their new climate goals and negotiate funding for vulnerable countries affected by climate change. Back home, many of their countries will still be recuperating from this year’s floods, fires, and other natural disasters. At the last conference in December 2023, governments agreed to reduce greenhouse gas emissions with the aim of trying to limit global warming to 1.5 degrees C above preindustrial temperatures.

“2024 is the hottest year on record, and nothing can change that at this point,” said Zeke Hausfather, a climate scientist at Berkeley Earth, which, due to slight variations in their model, found last year exceeded 1.5 degrees C, too. “It’s not about a single year passing that 1.5 level. It’s more important to consider the longer term average of human contribution to climate change.”

There are half a dozen groups, including Berkeley Earth, Copernicus, and NASA, that calculate the progress of global warming, and each has its own approach to filling in data gaps from the beginning of the century when records were less reliable, leading to different estimations of how much the Earth has warmed since then. The average of these models is used by international scientific authorities like the Intergovernmental Panel on Climate Change and the World Meteorological Organization. This is the first year, Hausfather said, that this communal average also shows the 1.5 C threshold has been passed.

“1.5 degrees is not a magic number. Each degree matters,” said Andrew Dessler, director of Texas A&M University’s Texas Center for Climate Studies. Because each part of our climate system has different thresholds for tolerating the excess heat, small changes in temperature can have major consequences and push ecosystems past their tipping points. “The world is engineered for the climate of the 20th century,” he said, “and we’re just now exiting that climate. We’re maladapted.”

Global warming alone can’t account for all the excess heat from these past two years. At least some of the supercharged temperatures and the disasters they catalyzed can be chalked up to a strong El Niño — a cyclical upwelling of warm water in the Pacific Ocean that shifts weather patterns across the globe. Although the most recent El Niño cycle was expected to give way to the cooler La Niña pattern this summer, the heat has persisted into the end of the year.

Once El Niño’s effects ease up, there’s a chance that coming years may dip back below the 1.5 C mark. Hausfather noted that only once the planet’s temperatures have remained above the 1.5 degrees C threshold for a decade or more will scientists consider international emissions agreements to be breached. “A big El Niño year like this one gives us a sneak peek as to what the new normal is going to be like in a decade or so,” he said.

And the new normal isn’t pretty. In addition to the widespread demise of coral reefs, the year brought record-setting heat waves in the Arctic and Antarctica that melted sea ice to near historic lows, stoking concerns that sea levels would rise faster than anticipated. During summer months, some 2 billion people, a quarter of all humans on Earth, were exposed to dangerously hot temperatures, including 91 million people in the United States and hundreds of millions in Asia.

The extra heat fueled disasters throughout the year. Deadly wildfires raged in South America, burning millions of hectares across the Amazon Basin and Chile. Arctic forests in Russia and Canada went up in flames too, spewing record amounts of carbon into the atmosphere. Catastrophic flooding killed hundreds in Spain, Africa, and South Asia. And recently, hurricanes Helene and Milton, catalyzed by hot ocean temperatures, tore through the Caribbean and the U.S. South. Meanwhile, droughts gripped communities on nearly every continent.

Those impacts are unacceptable. They’re being felt by those who are most vulnerable, which also happen to be, in general, those that are least responsible,” said Max Holmes, president and CEO of the Woodwell Climate Research Center.

Heavy rains from Hurricane Helene caused record flooding and damage on September 28, 2024 in Asheville, North Carolina

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At the U.N. conference in Azerbaijan, organizations like the Woodwell Climate Research Center and the World Wildlife Fund were given a platform to speak directly to country representatives and showcase their research on climate change. There, activists hope that wealthy countries shore up their commitments to support poorer countries in their efforts to cope with the climate crisis, develop clean energy, and restore ecosystems.

“People shouldn’t think the game is over because we passed 1.5 degrees,” Dessler said. “The game is never over.”

The Federal Communications Commission on Thursday said it had approved the merger of local television giants Nexstar Media Group and rival Tegna, the same day that two lawsuits trying to block the deal were announced.

Nexstar said last August that it would buy Tegna for $6.2 billion. The deal would create a company that owns 265 television stations in 44 states and the District of Columbia, most of them local affiliates of ABC, CBS, Fox and NBC. FCC Chairman Brendan Carr said the company had agreed to divest itself of six of those stations.

The deal needed the approval of the Republican Trump administration's FCC because the government had to waive rules that limit how many local stations that one company can own. Nexstar said it had also received approval from the Justice Department, but attempts to independently confirm that were not immediately successful Thursday.

"We are grateful to President Trump, Chairman Carr and the DOJ for recognizing the dynamic forces shaping the media landscape and allowing this transaction to move forward," said Perry Sook, Nexstar's chairman and CEO.

Attorneys general in eight states and DirecTV filed lawsuits with the U.S. District Court in Sacramento, California, seeking to block the merger. The lawsuits make similar arguments that the deal will lead to higher prices for consumers and stifle local journalism.

The action was filed by the top lawyers in California, Colorado, Connecticut, Illinois, New York, North Carolina, Oregon and Virginia — all of them Democrats. "If this merger moves forward, cable prices will spike for consumers in New York and across the country," said Letitia James, New York attorney general, on Thursday. The state lawyers argued the merger would run afoul of federal laws designed to protect against monopolies.

Similarly, DirecTV predicted the deal would allow Nexstar to jack up the price it can extract from DirecTV and other distributors to carry their stations, "which will force them to raise prices to their subscribers."

Given Nexstar's tendency to consolidate newsrooms in communities where it owns more than one station, both lawsuits expressed concern that the merger would hurt the already struggling local news business. There are 31 markets across the country where Nexstar and Tegna own at least one station, according to the states' lawsuit.

In approving the deal, Carr said that "if you care about local news, you should care about the future of local broadcast stations." He said the deal will ensure that the broadcasters have the resources to continue investing in those operations. Sook, too, said Nexstar will be a stronger company, "better positioned to deliver exceptional journalism and local programming."

Nexstar had no direct comment on the lawsuits, a spokesman said.

The merger was endorsed in February by President Donald Trump, who wrote on social media that "we need more competition against THE ENEMY, the Fake News National TV Networks."

Anna Gomez, a Democratic member of the FCC, condemned the Republican-controlled agency's decision, saying it was done behind closed doors without an actual vote.

"Local journalism is under extraordinary strain," she said. "Across the country newsrooms are being consolidated, reporters laid off and editorial decisions made far from the communities broadcast stations are licensed to serve. The Nexstar-Tegna merger will accelerate exactly that trend, concentrating broadcast power in fewer corporate hands, shrinking independent editorial voices and prioritizing national business interests over local needs."

Nexstar flexed its muscles last fall in ordering its ABC stations to yank late-night host Jimmy Kimmel following comments he made about assassinated Republican activist Charlie Kirk, briefly leading to Kimmel's suspension. But ABC brought Kimmel back following an outcry, and Nexstar backed down.

The attorneys general said they were open to having other states support their actions — even those whose chief legal officials are Republicans.

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Public officials across California are contemplating what to do with dozens of streets, parks and libraries named in honor of civil rights icon César Chávez in the wake of allegations he sexually assaulted two girls and a woman decades ago.

The allegations surfaced in an investigation by the New York Times published earlier this week that sent shock waves across the country.

Chávez, who was head of the United Farm Workers union, is widely recognized as one of the most influential labor leaders in U.S. history, known for founding the union and for leading national boycotts of grapes to improve working conditions for farmworkers.

Chávez died in 1993.

Many state and local leaders, including L.A.’s mayor and county supervisors, suggested changing the César Chávez holiday on March 31 to Farm Workers Day. March 31 was Chávez’s birthday.

In Sacramento on Thursday, Democratic leaders of the state Legislature said they would push for such a change.

“The farmworker movement was never ever about one man,” Assembly Speaker Robert Rivas said at a news conference. “It was built by tens of thousands of workers. People who labored in the fields, people who organized, people who sacrificed and who stood up when it was hard.

“We have a responsibility to remember the movement and to move it forward with integrity.”

Also on Thursday, Los Angeles Mayor Karen Bass signed a proclamation renaming the city's César Chávez Day holiday as “Farm Workers Day.” The city recognizes the holiday on the last Monday of March.

“I grew up as a child admiring the farmworker movement,'' Bass said. “I didn't think I was ever going to eat grapes again because my family boycotted grapes.”

The grape strike, organized in part by Chávez, lasted five years from 1965 to 1970.

Multiple allegations of sexual assault

The New York Times investigation uncovered multiple allegations that Chávez had sexually assaulted girls and women in the 1960s and ‘70s, when he was head of United Farm Workers, including union co-founder Dolores Huerta.

Huerta, now 95, told the Times the rape and sexual assault resulted in pregnancies that she kept secret. Huerta said she gave the children up for adoption after birth.

In a statement, Huerta said in part: “... for the last 60 years [I] have kept a secret because I believed that exposing the truth would hurt the farmworker movement I have spent my entire life fighting for.”

Bass said Thursday she met Chávez once and “thought it was an opportunity of a lifetime.” She said her heart “broke” this week when she heard the allegation that Chávez had raped Huerta.

The mayor said renaming the holiday would allow people “to reflect on how the struggle of farmworkers has elevated working people everywhere.”

She added that the city would need to consider changing the names of buildings, streets and other things named in honor of Chávez.

For example, César Chávez Avenue runs through the heart of the Boyle Heights neighborhood. Several murals of Chávez dot the city.

Bass said she had been in contact with Chávez's family, and they supported her action.

The mayor was joined at the proclamation signing by Councilwoman Eunisses Hernandez, who said in a statement that the farmworker movement has always been about the power of the people, “especially the women whose labor built it and too often went unseen."

“As we honor that legacy, we also have a responsibility to tell the truth about harm and stand with survivors,” Hernandez said.

Councilwoman Ysabel Jurado also attended the news conference. She said the movement doesn’t belong to one person.

“Farm Workers Day honors the workers, families and organizers still in the fields and still fighting for fair wages, safe conditions and dignity,” the statement from Jurado read. “And it recognizes that this movement is carried forward every single day by people whose names we may never know but whose impact continues to define the spirit of Los Angeles.”

Other cities and counties 

Many other cities and counties are considering wiping Chávez's name from public spaces.

L.A. County Supervisor Hilda Solis said she would introduce a motion looking at renaming the county’s César Chávez holiday.

Supervisor Janice Hahn suggested the county consider renaming Chávez day “Farm Worker Day.”

“For those of us who grew up admiring the farmworker movement, today's news is heartbreaking,'' Hahn said in a statement Wednesday. "But as in any other civil rights movement, men were only half the story. The abuses of one man will never diminish the extraordinary sacrifices, accomplishments, and legacy of the women of the farmworker movement.

“It's time we put them first.”

The process for renaming streets and other public structures varies from city to city and school district to school district. It could take months before many cities move to erase Chávez's name from public spaces.

You can follow your city council agenda to keep up with what’s going on, or better yet, reach out to your representatives on the council and county Board of Supervisors to make your voice heard on the issue.

California, along with a coalition of 23 other states and a dozen cities and counties, sued the U.S. Environmental Protection Agency on Thursday for rolling back the scientific finding requiring it to regulate greenhouse gas pollution.

“This isn’t a small technical change,” California Attorney General Rob Bonta said at a press conference in Sacramento. “It’s a sweeping decision that would increase pollution, worsen climate change and put the health of millions of Americans at risk. And it’s not based on any credible science.”

The lawsuit, filed in the U.S. District Court of Appeals for the District of Columbia, seeks to reinstate a 2009 conclusion known as the endangerment finding — that carbon dioxide and other planet-warming gases threaten public health and welfare.

The climate rule served as the scientific basis for the agency’s ability to limit emissions under the Clean Air Act.

The Trump administration finalized the repeal of the endangerment finding Feb. 12. A post on the EPA’s website stated the change would also dissolve restrictions on vehicle emissions and save Americans $1.3 trillion.

“As a result of these changes, engine and vehicle manufacturers no longer have any future obligations for the measurement, control and reporting of GHG emissions for any highway engine and vehicle, including model years manufactured prior to this final rule.”

Sanchez said California’s authority to regulate greenhouse gas emissions under the landmark 2006 Global Warming Solutions Act, AB 32, signed into law by then-Republican Gov. Arnold Schwarzenegger, “remains unchanged.”

Los Angeles, San Francisco and Santa Clara counties also were parties to the suit.

KQED’s Laura Klivans contributed to this report.

California voters are split along party lines on two controversial proposed ballot measures — a billionaire tax and an initiative requiring voters to show government ID when they cast a ballot — according to a new poll.

The survey from UC Berkeley’s Institute of Governmental Studies found 52% of voters backing a proposed one-time, 5% tax on the net worth of billionaires. The money would be used to fund health care programs, which are being cut by the Trump administration; 33% of registered voters said they were opposed and 15% said they are still undecided.

Whether voters back the measure, which is being pushed by a health care labor union, is highly correlated to their partisan leanings: 72% of Democrats said they’d support the billionaire tax if it qualifies for the November ballot, while the same percentage of Republican voters are opposed. Voters with no party preference were more split, with 51% backing the wealth tax.

The voter ID ballot measure is more evenly divided, with 44% of voters in support and 45% opposed. Republican voters said they would overwhelmingly vote “Yes.” Democrats are unified in opposition, with only 19% in support.

IGS co-director Eric Schickler said that while neither measure has qualified yet for the ballot, most voters surveyed said they are aware of the proposals.

“The Billionaire Tax Initiative starts out in a relatively strong position, but with it polling just above 50%, that still leaves room for what will be an intense, expensive campaign,” he said. “The Voter ID Initiative looks like it faces an uphill climb: given the strong Democratic opposition, it needs very strong support among nonpartisan voters, and it currently seems to be falling short. But it is still very early.”

If they move forward, the campaigns around both measures are expected to be expensive and bruising. Democrats are split on the billionaires tax: Gov. Gavin Newsom is opposed, Silicon Valley Rep. Ro Khanna said he’s in support, and many other Democrats — including legislative leaders and candidates for governor — have offered support for the concept but expressed concerns with the details of this proposal.

Some billionaires have already left California, and others, like Google co-founder Sergey Brin, are lining up huge campaign war chests to fight the measure.

And Democrats are gearing up to fight the voter ID measure, which several Southern California Republican lawmakers are pushing. The proposed ballot measure comes as the U.S. Senate debates what’s known as the SAVE Act, a far more draconian voter ID measure.

Backed by President Donald Trump, that legislation would require a passport or birth certificate to register to vote, essentially eliminate mail-in ballots and require states to hand over their voter rolls to the federal government. It already passed the House but is facing a steep climb in the Republican-led Senate.

The poll was conducted between March 9 and 15 among more than 5,000 registered California voters. It has a sampling error of plus or minus 2 points.