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How an effort to reduce fossil fuel use led to another environmental problem: light pollution

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How an effort to reduce fossil fuel use led to another environmental problem: light pollution

In 2014, Los Angeles minimize its annual carbon emissions by 43% and saved $9 million in vitality prices by changing the bulbs in additional than half of town’s road lamps with light-emitting diodes.

That yr, the Nobel Prize in physics went to 3 scientists whose work made these LEDs attainable. “As about one fourth of world electrical energy consumption is used for lighting functions, the LEDs contribute to saving the Earth’s sources,” the Nobel committee defined when it introduced the award.

For greater than a century, most sources of synthetic mild wasted vitality within the type of warmth. LEDs are rather more environment friendly, requiring lower than 25% of the vitality consumed by an incandescent lamp. By 2020, LEDs accounted for 51% of worldwide lighting gross sales, up from simply 1% in 2010, in line with the Worldwide Power Company, an intergovernmental group that analyzes international vitality information.

It seems like a transparent win for the atmosphere. However that’s not how Ruskin Hartley sees it.

“The drive for environment friendly fixtures has come on the expense of a speedy enhance in mild air pollution,” he mentioned.

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A northern starscape behind silhouettes of cedar bushes at Cedar Breaks Nationwide Monument in Utah.

(Sumeet Kulkarni / Los Angeles Instances)

Hartley would know. He’s the chief director of the Worldwide Darkish-Sky Assn., or IDA, and he’s one in all a rising quantity of people that say the darkish sky is an undervalued and underappreciated pure useful resource. Its loss has detrimental penalties for wildlife and human well being.

And but the general public’s embrace of LEDs retains rising, spilling manner an excessive amount of mild into the sky the place nobody wants it.

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“We’ve taken a whole lot of the vitality financial savings and simply lit further locations,” Hartley mentioned. It’s a traditional instance of the Jevons paradox, during which effectivity good points (equivalent to higher car fuel mileage) are countered by a rise in consumption (individuals driving extra typically).

In essence, Hartley and others say, we’ve traded one sort of air pollution for an additional.

That’s not the one drawback. Along with making extra mild, LEDs have altered its basic nature.

Compared to incandescent bulbs, LEDs produce light that is more bluish-white.

In comparison with incandescent bulbs, LEDs produce mild that’s extra bluish-white.

(Witthaya Prasongsin / Getty Photographs)

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The sunshine produced by incandescent bulbs had hotter amber or yellow colours, “extra in tune with firelight, the one mild other than starlight we knew,” mentioned Robert Meadows, a scientist with the Pure Sounds and Evening Skies Division of the Nationwide Park Service. LEDs, in distinction, give off cooler bluish-white tones that exacerbate mild air pollution for a similar motive that the sky is blue.

Daylight comprises the complete spectrum of colours, and air molecules occur to be the fitting measurement to scatter the shorter blue wavelengths extra successfully than every other. This causes blue mild to unfold extra readily within the ambiance, giving the daytime sky its acquainted shade.

After the solar goes down, the identical factor occurs with LED mild that spills wastefully into the sky: It will get subtle to a higher extent and will increase “sky glow,” the mixed radiance of metropolis lights.

Lights from buildings in downtown Los Angeles wash out most stars in the night sky.

Lights from buildings in downtown Los Angeles wash out most stars within the night time sky.

(Sumeet Kulkarni / Los Angeles Instances)

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Travis Longcore, an city ecologist at UCLA, estimates that synthetic lighting causes the night time sky in Los Angeles to shine 1½ instances brighter than an evening lit by a full moon. All creatures are affected by the brighter nightscapes, particularly those that can’t shut the blinds for a sound sleep.

“There are numerous, many species who don’t exit and forage through the full moon as a result of it’s too vivid they usually know they’re going to be weak to predators,” he mentioned.

Based on the Nationwide Audubon Society, 80% of North American migratory hen species fly at night time, they usually’re confounded by metropolis lights.

An endangered Western snowy plover in Huntington Beach.

An endangered Western snowy plover in Huntington Seaside.

(Raul Roa / Instances Group Information)

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Even species that keep put are pressured to relocate their properties. A current examine led by Longcore discovered that Western snowy plovers, a threatened species of shorebird, search for protected roost websites in darker areas of Santa Monica Bay when principally empty parking tons are illuminated with floodlights all night time lengthy.

The survival of untamed species relies on the variabilities of the pure world — day and night time, seasons, the lunar cycle. Take them away, Longcore mentioned, and also you inevitably begin alienating species from their pure habitats.

Bolts of lightning illuminate the desert floor at Joshua Tree National Park.

Bolts of lightning illuminate the desert flooring at Joshua Tree Nationwide Park.

(Sumeet Kulkarni / Los Angeles Instances)

Snakes, for instance, are most energetic and hunt prey throughout new moon nights. The disappearance of the California shiny snake and the long-nosed snake from Orange County has been attributed largely to the rise in ambient mild.

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People, too, are weak to mild air pollution. Synthetic mild blocks the manufacturing of melatonin, a hormone that regulates sleep cycles, and disrupted sleep cycles have been linked to an array of well being issues. The American Medical Assn. warned in 2016 that high-intensity, blue-rich LED lights have been “related to lowered sleep instances, dissatisfaction with sleep high quality, extreme sleepiness, impaired daytime functioning, and weight problems.”

Longcore calls it “an accident of historical past” that the primary LEDs to grow to be available have been blue-white in shade. LEDs that produce hotter colours with related ranges of effectivity at the moment are out there, however the unique stays common with shoppers preferring the best way it mimics daylight.

The Milky Way can be seen in exquisite detail in the dark skies over Cedar Breaks National Monument in Utah.

The Milky Method might be seen in beautiful element at nighttime skies over Cedar Breaks Nationwide Monument in Utah.

(Sumeet Kulkarni / Los Angeles Instances)

Due to sky glow, mild air pollution isn’t only a native phenomenon. Even areas a whole lot of miles from city facilities can’t escape it.

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“You’ll be able to see Los Angeles from Loss of life Valley at night time,” Meadows mentioned.

The explanation mild air pollution is steadily getting worse, Hartley mentioned, is that individuals aren’t even conscious it’s an issue.

“I don’t suppose anybody deliberately units out to pollute the night time,” he mentioned. However with regards to lighting up our environment for the sake of security, “there’s an assumption that as a result of a little bit bit of sunshine is nice, extra mild have to be higher.”

The one benefit of mild air pollution is that, not like air pollution brought on by chemical substances or plastics, it’s absolutely reversible. Merely flip off sufficient lights and the darkish skies might be again instantly.

“The answer doesn’t imply plunging us into medieval darkness,” Hartley mentioned. It entails pondering rigorously concerning the function of every lamp put in, ensuring its mild is restricted to its meant area, and turning it on solely through the time it’s wanted.

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Mexico, France and Croatia have enacted nationwide mild air pollution legal guidelines. Since 2013, France has required all retailers and places of work to show off their lights after 1 a.m.

Nineteen states, the District of Columbia and Puerto Rico have legal guidelines on the books to stop mild air pollution. Arizona, residence to a number of massive telescopes, requires all exterior lights to be fitted with shields that stop mild from escaping skyward. Some coastal areas in Florida mandate low-power amber lights that received’t draw sea turtle hatchlings away from the protection of the Gulf of Mexico.

No such legal guidelines exist in California, however Assemblyman Alex Lee (D-San Jose) launched a invoice that might require all outside lights on state authorities buildings to be shielded and have hotter shade tones. They’d additionally must be dimmed or shut off at night time, although they might activate if activated by a movement sensor.

The invoice has handed each homes of the Legislature, and it’s now as much as Gov. Gavin Newsom to determine whether or not to signal it.

Being restricted to state property, the invoice doesn’t tackle the worst culprits of sunshine air pollution, which embody stadium floodlights, industrial lights, outside residential lights and streetlights.

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Nonetheless, Longcore sees it as “a primary child step that must be taken.” If the federal government leads by instance, extra individuals will acknowledge the significance of this challenge, he mentioned.

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In Southern California, many are skipping healthcare out of fear of ICE operations

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In Southern California, many are skipping healthcare out of fear of ICE operations

Missed childhood vaccinations. Skipped blood sugar checks. Medications abandoned at the pharmacy.

These are among the healthcare disruptions providers have noticed since Immigration and Customs Enforcement operations began in Southern California earlier this month.

Across the region, once-busy parks, shops and businesses have emptied as undocumented residents and their families hole up at home in fear. As rumors of immigration arrests have swirled around clinics and hospitals, many patients are also opting to skip chronic-care management visits as well as routine childhood check-ups.

In response, local federally qualified health centers — institutions that receive federal funds and are required by law to provide primary care regardless of ability to pay — have been scrambling to organize virtual appointments, house calls and pharmacy deliveries to patients who no longer feel safe going out in public.

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“We’re just seeing a very frightening and chaotic environment that’s making it extremely difficult to provide for the healthcare needs of our patients,” said Jim Mangia, president of St. John’s Community Health, which offers medical, dental and mental health care to more than 100,000 low-income patients annually in Southern California.

Prior to the raids, the system’s network of clinics logged about a 9% no-show rate, Mangia said. In recent weeks, more than 30% of patients have canceled or failed to show. In response, the organization has launched a program called Healthcare Without Fear to provide virtual and home visits to patients concerned about the prospect of arrest.

“When we call patients back who missed their appointment and didn’t call in, overwhelmingly, they’re telling us they’re not coming out because of ICE,” said Mangia, who estimates that 25% of the clinic’s patient population is undocumented. “People are missing some pretty substantial healthcare appointments.”

A recent survey of patient no-shows at nonprofit health clinics across Los Angeles County found no universal trends across the 118 members of the Community Clinic Assn. of L.A. County, President Louise McCarthy said. Some clinics have seen a jump in missed appointments, while others have observed no change. The data do not indicate how many patients opted to convert scheduled in-person visits to telehealth so they wouldn’t have to leave home, she noted.

Patients have also expressed concerns that any usage of health services could make them targets. Earlier this month, the Associated Press reported that the U.S. Department of Health and Human Services shared the personal data of Medicaid enrollees with the U.S. Department of Homeland Security, including their immigration status. No specific enforcement actions have been directly linked to the data.

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“The level of uncertainty and anxiety that is happening now is beyond the pale,” McCarthy said, for patients and staff alike.

County-run L.A. General Medical Center issued a statement on Thursday refuting reports that federal authorities had carried out enforcement operations at the downtown trauma center. While no immigration-related arrests have been reported at county health facilities, “the mere threat of immigration enforcement near any medical facility undermines public trust and jeopardizes community health,” the department said in a statement.

Los Angeles County is among the providers working to extend in-home care options such as medication delivery and a nurse advice line for people reluctant to come in person.

“However, not all medical appointments or conditions can be addressed remotely,” a spokesperson said. “We urge anyone in need of care not to delay.”

Providers expressed concern that missing preventative care appointments could lead to emergencies that both threaten patients’ lives and further stress public resources. Preventative care “keeps our community at large healthy and benefits really everyone in Los Angeles,” said a staff member at a group of L.A. area clinics. He asked that his employer not be named for fear of drawing attention to their patient population.

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Neglecting care now, he said, “is going to cost everybody more money in the long run.”

A patient with hypertension who skips blood pressure monitoring appointments now may be more likely to be brought into an emergency room with a heart attack in the future, said Dr. Bukola Olusanya, a medical director at St. John’s.

“If [people] can’t get their medications, they can’t do follow-ups. That means a chronic condition that has been managed and well-controlled is just going to deteriorate,” she said. “We will see patients going to the ER more than they should be, rather than coming to primary care.”

Providers are already seeing that shift. When a health team visited one diabetic patient recently at home, they found her blood sugar levels sky-high, Mangia said. She told the team she’d consumed nothing but tortillas and coffee in the previous five days rather than risk a trip to the grocery store.

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At Chile’s Vera Rubin Observatory, Earth’s Largest Camera Surveys the Sky

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At Chile’s Vera Rubin Observatory, Earth’s Largest Camera Surveys the Sky

At the heart of the new Vera C. Rubin Observatory in Chile is the world’s largest digital camera. About the size of a small car, it will create an unparalleled map of the night sky.

The observatory’s first public images of the sky are expected to be released on June 23. Here’s how its camera works.

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When Times reporters visited the observatory on top of an 8,800-foot-high mountain in May, the telescope was undergoing calibration to measure minute differences in the sensitivity of the camera’s pixels. The camera is expected to have a life of more than 10 years.

A single Rubin image contains roughly as much data as all the words that The New York Times has published since 1851. The observatory will produce about 20 terabytes of data every night, which will be transferred and processed at facilities in California, France and Britain.

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Note: Data flow map is schematic, based on Rubin Observatory diagrams.

Specialized software will compare each new image with a template assembled from previous data, revealing changes in brightness or position in the sky. The observatory is expected to detect up to 10 million changes every night.

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Some changes will be artificial. Simulations suggest that roughly one in 10 Rubin images will contain at least one bright streak or glint from the thousands of SpaceX Starlink and other satellites orbiting Earth.

Despite streaks, clouds, maintenance and other interruptions over the next decade, the Rubin Observatory is expected to catalog 20 billion galaxies and 17 billion stars across the Southern sky.

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'We are still here, yet invisible.' Study finds that U.S. government has overestimated Native American life expectancy

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'We are still here, yet invisible.' Study finds that U.S. government has overestimated Native American life expectancy

Official U.S. records dramatically underestimate mortality and life expectancy disparities for Native Americans, according to a new, groundbreaking study published in the Journal of the American Medical Association. The research, led by the Boston University School of Public Health, provides compelling evidence of a profound discrepancy between actual and officially reported statistics on the health outcomes of American Indian and Alaska Native (AI/AN) populations in the U.S.

The study, novel in its approach, tracks mortality outcomes over time among self-identified AI/AN individuals in a nationally representative cohort known as the Mortality Disparities in American Communities. The researchers linked data from the U.S. Census Bureau’s 2008 American Community Survey with official death certificates from the Centers for Disease Control and Prevention’s National Vital Statistics System from 2008 through 2019, and found that the life expectancy of AI/AN populations was 6.5 years lower than the national average. They then compared this to data from the CDC’s WONDER database, and found that their numbers were nearly three times greater than the gap reported by the CDC.

Indeed, the study found that the life expectancy for AI/AN individuals was just 72.7 years, comparable to that of developing countries.

The researchers also uncovered widespread racial misclassification. The study reports that some 41% of AI/AN deaths were incorrectly classified in the CDC WONDER database, predominantly misrecorded as “White.” These systemic misclassifications drastically skewed official statistics, presenting AI/AN mortality rates as only 5% higher than the national average. When they adjusted the data to account for those misclassifications, the researchers found that the actual rate was 42% higher than initially reported.

The issue of racial misclassification “is not new for us at all,” said Nanette Star, director of policy and planning at the California Consortium for Urban Indian Health. The recent tendency for journalists and politicians to use umbrella terms like “Indigenous” rather than the more precise “American Indian and Alaska Native” can obscure the unique needs, histories and political identities of AI/AN communities, Star noted, and contribute to their erasure in both data and public discourse. “That is the word we use — erasure — and it really does result in that invisibility in our health statistics,” she said.

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Issues related to racial misclassification in public records persist across the entire life course for AI/AN individuals, from birth to early childhood interventions to chronic disease and death. Star noted that in California, especially in urban regions like Los Angeles, Native individuals are frequently misidentified as Latino or multiracial, which profoundly distorts public health data and masks the extent of health disparities. “It really does mask the true scale of premature mortality and health disparities among our communities,” Star said.

Further, said Star, the lack of accurate data exacerbates health disparities. “It really is a public health and justice issue,” she said. “If you don’t have those numbers to support the targeted response, you don’t get the funding for these interventions or even preventative measures.”

According to U.S. Census data, California is home to the largest AI/AN population in the United States. That means it has a unique opportunity to lead the nation in addressing these systemic issues. With numerous federally and state-recognized tribes, as well as substantial urban AI/AN populations, California can prioritize collaborative and accurate public health data collection and reporting.

Star noted that current distortions are not always malicious but often stem from a lack of training. She suggested that California implement targeted training programs for those charged with recording this data, including funeral directors, coroners, medical doctors and law enforcement agents; allocate dedicated resources to improve the accuracy of racial classification on vital records; and strengthen partnerships with tribal leaders.

The study authors suggest similar approaches, and there are numerous examples of successful cases of Indigenous-led health partnerships seen across Canada and the U.S. that have helped reduce health disparities among AI/AN communities that could be used as a template.

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These efforts would not only help to move toward rectifying historical inaccuracies, but also ensure that AI/AN communities receive equitable health resources and policy attention.

“When AI/AN people are misclassified in life and in death, it distorts public health data and drives inequities even deeper,” said Star. “Accurate data isn’t just about numbers — it’s about honoring lives, holding systems accountable and making sure our communities are seen and served.”

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