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Emergency room visits during heat waves available to the public in ‘near-real time’ in L.A. County

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Emergency room visits during heat waves available to the public in ‘near-real time’ in L.A. County

For the first time, Los Angeles County residents can see how many people are ending up in emergency rooms, their bodies pushed past the limit, during heat waves.

The county Department of Public Health says its new Heat-Related Illness and Mortality Dashboard will provide heat illness counts in “near real time,” which means weekly. That might seem like a lag, but until now the data were only provided upon request and in ad hoc reports.

Heat is the leading cause of weather-related death in the United States and heat waves are only getting more frequent and intense as the climate changes.

Public health experts called the tracker a meaningful step toward assessing how well county programs are addressing heat risks.

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“It’s showing the county’s commitment to reducing the burden of heat on people’s health,” said David Eisenman, director of UCLA’s Center for Public Health and Disasters. “As the county puts more resources into that, this is a metric that allows the public to judge the effectiveness of the work.”

“There’s a handful of other places that also do this, but they’re all relatively new,” said Bharat Venkat, director of the UCLA Heat Lab, noting as examples Imperial and Riverside counties in California, Harris County in Texas and Maricopa County in Arizona. “It is very much welcome.”

The tracker takes heat illness data from patient complaints and doctor diagnoses provided by a countywide monitoring project that was previously available only to public health officials. The website says that what it provides is an undercount. The records often fail to count people when heat exacerbates more obvious health problems.

“Heat piggybacks off of preexisting health conditions,” Venkat said. “Say you go to the ER and you’re experiencing an intense psychotic episode, or a heart attack or a stroke. It’s very likely that the doctor is going to diagnose that as a psychotic episode, heart attack or stroke, and less likely that they’ll note that heat is contributing to that.”

Heat-related deaths are counted from death certificates, which present similar issues for undercounting. Those numbers will be reported monthly on the dashboard.

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L.A. County has a recently approved heat action plan that aims to educate the public and reduce indoor and outdoor temperatures with strategies such as opting for shade and air conditioning.

The new tracker breaks down daily heat-related emergency room visits and deaths by age group, geography, and race and ethnicity.

It shows that people over 65 are more vulnerable to heat illness. For Black residents, heat is disproportionately fatal. And people in the San Fernando, San Gabriel, and Antelope valleys see the most heat-related emergency room visits.

Kelly Turner, a professor of urban planning at UCLA, stressed that heat sickness tracks closely with social inequality and is preventable.

“A heat death or heat illness is dependent on who you are and what assets you have,” Turner said. “If you have air conditioning or not, if you work outside or you don’t, all of those factors factor in.”

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She noted that there is more risk in the San Fernando and San Gabriel valleys because of the combination of hotter days and more people who are unprotected. “When you map those two things on top of each other, you get a hot spot of vulnerability,” she said.

California already has a tool called CalHeatScore that uses historical hospital records and temperatures to forecast risk for different ZIP Codes in the state during heat events.

Public health officials hope to use the new dashboard to target messaging and public outreach when extreme heat strikes.

“If we’re having an extended heat event we can show that, ‘Hey, we’re having heat impacts’ as they’re happening,” said Dr. Nicole Quick, chief science officer at the L.A. County Department of Public Health.

Venkat said he would like to see the tool become more robust, in line with Maricopa County’s dashboard, widely viewed as the current gold standard for heat illness and mortality tracking. He said the Arizona county, which includes Phoenix, dives deeper into health records and conditions surrounding hospitalizations and deaths to better reflect the role of heat.

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“They do scene investigations and send someone out to take notes about where the body was found,” Venkat said. “What was going on? Did they have air conditioning? Were they outside? Did they have access to water? What medications were they taking? All those things provide important context.”

Eisenman said he would like to see the county train physicians on recording heat-related illness, as it has been “clear for a long time” that doctors don’t make the diagnosis enough.

“It would have to be more than just a handout or a few slides. You’d really have to have each institution make some effort to change physicians’ behaviors,” Eisenman said. He added that it probably hasn’t been done because of the costs involved.

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China Launches Reusable Rocket in Race With SpaceX

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Video released by Chinese state media shows a state-owned aerospace company launching a rocket and recovering part of it on Friday. The successful launch of a reusable rocket was a major step for China toward challenging SpaceX’s satellite internet dominance.

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Nobel Prize winner leaving UC Berkeley for new role in China

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Nobel Prize winner leaving UC Berkeley for new role in China

Nobel Prize recipient Omar Yaghi is leaving his role at UC Berkeley to lead the development of a new artificial intelligence institute at Tsinghua University in Beijing, the Chinese university announced.

Yaghi will head the AI Chemistry and Materials Research Institute at Tsinghua, where he was appointed an honorary professor in 2022. Known as AIMATRY (AI × Materials × Chemistry), the new center will focus on material design and synthesis through artificial intelligence, according to a statement from the university.

In 2025, Yaghi shared the Nobel Prize in chemistry with Susumu Kitagawa of Kyoto University and Richard Robson of the University of Melbourne for their development of metal-organic frameworks, a type of super-porous material in which metal ions and carbon-based molecules combine to form crystals with exceptionally large surface areas.

The material has the potential to combat climate change by capturing and storing carbon or other pollutants, and by extracting water from the atmosphere in water-scarce areas. Upon awarding the prize, a member of the Nobel committee likened the technology’s ability to store enormous amounts of stuff in seemingly compact spaces to Hermione Granger’s enchanted handbag in the Harry Potter series.

Yaghi’s Irvine-based company, Atoco, has said it will start taking orders later this year for its technology that harvests water from the air.

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A representative for Yaghi said he was not yet available to respond to questions.

China is one of several countries that has been actively recruiting scientists from the U.S., where the Trump administration has slashed science funding, suspended research grants, fired science advisors and tightened immigration restrictions.

“For many, many years, our funding was very competitive; if you worked hard and you were doing good research, you would get funding,” Yaghi said of the U.S. in an interview with Scientific American earlier this year. “The current state is not so encouraging because of the cutting back on grants and support of science by the very agencies that many university researchers rely on.”

Yaghi was born in Jordan to Palestinian refugees, and immigrated to the U.S. when he was 15 to study.

“We’ve learned over and over in human civilization that scholars can move across borders,” Yaghi told the New York Times last year. “This is how knowledge spread and how vast regions of the world lifted themselves out of poverty.”

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Trump administration seeks to limit federal funding that doesn’t ‘advance’ presidential policies

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Trump administration seeks to limit federal funding that doesn’t ‘advance’ presidential policies

A new rule proposed by the White House Office of Management and Budget would fundamentally overhaul the way federal grants are awarded and overseen — a sweeping change that one scientific society said “would all but end the use of scientific merit in the selection of grants and programs across the government.”

Proposed in late May, the rule would give political appointees unprecedented control over federal grants for research, education and infrastructure, and specifies that government funds can only be spent on projects “aligned with administration policies and priorities,” according to a copy of the proposed rule.

The rule would also restrict research topics, limit U.S. scientists’ ability to collaborate with colleagues in other countries and make it easier for the government to suspend or cancel grants at any time.

The changes are intended to improve “transparency, accountability, and oversight for Federal awards” while “ensuring that American tax dollars are not wasted or misused,” according to the White House office.

But critics say that if the rule is implemented, the final sign-off for grants will no longer be in the hands of subject-matter experts within individual agencies, but in those of political appointees.

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“This touches all parts of American life,” said Dr. Eric Rafla-Yuan, a psychiatrist who practices at the Veterans Administration and San Diego County’s psychiatric hospital.

“Control of how all of the federal grants and programs are funded will fall under a small group of highly partisan individuals who would have very few limits on how they spend these billions of taxpayer dollars,” said Rafla-Yuan, who also chairs the Committee to Protect Public Mental Health advocacy group. “This touches everyone’s life, even if they don’t realize it.”

OMB published the proposed rule May 29, opening a 45-day comment period that closes July 13.

Opposition to the proposed rule has mobilized multiple sectors of society. Professional groups representing cancer researchers, civil engineers, county governments, medical schools, housing agencies, city and municipal governments, nonprofits and others have publicly expressed concerns about potential consequences.

By midday Thursday, the Federal Register logged nearly 100,000 comments about the proposal, many of them expressing concern.

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“I understand the need for oversight, fiscal responsibility, and accountability. That is not the issue,” wrote Jack Feldman, a neuroscientist who holds the David Geffen School of Medicine Chair in Neuroscience at UCLA. “The issue is whether scientific research is to be judged by scientific merit, or whether it can be approved, denied, or terminated according to broad political criteria that may change from one administration to the next.”

Crucially, the rule converts policies governing federal grants from “guidance” into binding regulations that all agencies would be required to follow. It would give political appointees power to override federal agencies’ merit-based reviews and mandate that a political appointee review decisions to ensure that all awards “demonstrably advance the President’s policy priorities.”

The elevation of political appointees in what were previously merit-based decisions has alarmed many scientists.

“The proposed rule changes would all but end the use of scientific merit in the selection of grants and programs across the government,” read a statement from the Planetary Society, a nonprofit dedicated to space research.

Researchers and science groups have also expressed concern about a section of the rule prohibiting the promotion of “theories of disparate-impact liability” — a legal concept that refers to policies that appear neutral but cause disproportionate harm to certain groups.

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The section’s vague language and many loopholes could have a chilling effect on any research that studies the effects of a disease, policy or public health intervention on any specific group of people, Rafla-Yuan said.

As an example, he said, “if there’s a specific age range that is at higher risk for suicide, and we want to figure out, well, what’s going on with people that are aged 14 to 19 … we can’t do that under the wording in this rule.”

New restrictions on collaborations with scientists in other countries would hinder opportunities for U.S. researchers and limit innovation, said Joanne Padrón Carney, chief government relations officer for the American Assn. for the Advancement of Science.

“Science is a global enterprise. Especially in biomedical and public health fields, diseases don’t care about borders or government policies,” she said.

California’s congressional delegation sent a letter Wednesday asking OMB to rescind the proposal, outlining concerns about its impact on scientific innovation, U.S. competitiveness and the fiscal stability of local governments, many of which rely on federal grants for local services.

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The proposed rule grants the federal government broad powers to suspend or cancel grants for any reason, introducing “unprecedented unpredictability into local governance,” the lawmakers wrote, “leaving vital infrastructure projects unfinished and abandoning vulnerable populations who rely on these services.”

Republican Sen. Susan Collins has also asked the White House to withdraw certain parts of the letter and extend the public comment period, saying the proposed rule as written would “harm small and rural communities, undermine scientific and biomedical research, and conflict with Congress’ control over the federal funding process.”

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