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    Pollution May Affect the Color of City Birds, Research Shows

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    Recent studies show that certain feather pigments can help neutralize toxic pollution. It means darker, duller birds could have a survival advantage.Some popular city dwellers appear to be losing their colorful allure, and not just the dirty birds.According to a study published this summer in the journal Landscape and Planning that looked at 547 bird species in China, birds that live in cities are duller and darker on average than their rural counterparts. A similar conclusion emerged from an analysis of 59 studies published in March in Biological Reviews: Urban feathers are not as bright, with yellow, orange and red feathers affected most.Often, city birds are covered in grime. But even if you could give them all a good bird bath, chances are their brightness still wouldn’t match that of their country cousins. That’s because of the way pollution, and heavy metals in particular, can interact with melanin, a pigment that makes feathers black, brown and gray.Studies show that melanin can bind to heavy metals like lead. That means toxic chemicals may be more likely to be stored in plumage in darker and duller birds. And that, in turn, can confer a survival advantage.“The more melanin you accumulate, the better able you are to sequester these harmful compounds in feathers,” said Kevin McGraw, a biologist at Michigan State University who studies the colors of animals to understand the costs, benefits and evolution of visual signals.Urban pollution affects avian colors in other ways, too. Research shows that compared with rural plants, city trees store fewer natural pigments called carotenoids, and pollution is the likely reason. Carotenoids are produced by plants, algae and fungi. They’re what makes red peppers red and carrots orange.When leaves are low on these pigments, the effects go up the food chain: Leaf-munching caterpillars become deficient in carotenoids, and so do caterpillar-munching birds.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      How Air-Conditioning Made Us Expect Arizona to Feel the Same as Maine

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      It’s a quiet force that contributes to a sameness across the country and to climate change.One force has quietly shaped much of the world around us — our homes, our offices, the look of our cities, the migration patterns of Americans and the economic fortunes of different parts of the country.That is: air-conditioning.It’s become so widespread as to be unremarkable, an assumed feature of every interior environment. Nearly 90 percent of Americans use some kind of air-conditioning at home. It is humming in the background just about everywhere else you go: in your car, at the mall, on an airplane.But, as we discuss in an episode of “The Daily” podcast today, our dependence on it increasingly poses a knotty problem, as the energy needed to power all this air-conditioning produces emissions that contribute to the warming world. The more we use the thing that helps us cope with heat, the hotter it will get.“This cycle where air-conditioning is both the solution and the problem is really where we’re collectively kind of stuck,” said Daniel Barber, head of the school of architecture at the University of Technology Sydney.Or, as he has written more bluntly: The comfort air-conditioning gives us inside is predicated on the worsening instability of the climate outside.My colleagues Ronda Kaysen and Aatish Bhatia wrote about an illustration of this relationship on Monday. In some of the fastest-growing major metro areas in the U.S., like Las Vegas, the nights are rapidly getting hotter. That drives demand for even more air-conditioning. And in fact, without air-conditioning, it’s unlikely so many people would have moved to Las Vegas in the first place.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Clear Encampments? Mind Your Own Business, Los Angeles Says.

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      In California, Gov. Gavin Newsom’s declaration urging cities to clear homeless camps met its strongest opposition in Los Angeles.Gov. Gavin Newsom appeared this week wearing work gloves and Ray-Ban sunglasses as he hauled a garbage bag from under a freeway overpass in California. His message was obvious: He wanted state and local officials to clear out homeless encampments, just as he was doing, and he had signed an executive order to spur them into action.“There are no longer any excuses,” Mr. Newsom said in a video statement that was released Thursday and filmed at an encampment where everything from a box fan to a plastic kiddie pool had been stashed.Hours later, the mayor of Los Angeles, Karen Bass, responded with her own set of visuals from a different encampment cleanup in the nation’s second-largest city. Ms. Bass pointedly emphasized that 15 residents whom the city had displaced from this particular encampment had been “brought inside.”The clearing of encampments has long been framed as a partisan issue, with Democrats on one side reluctant to remove homeless people and Republicans on the other demanding citations and arrests. But in California, where Democrats dominate the state government and run its largest cities, the matter has become an intraparty dispute, especially after a Supreme Court decision last month gave local officials greater authority to crack down on encampments.Nowhere was Mr. Newsom’s executive order met Thursday with more scorn than in Los Angeles, where the public defenders who serve homeless clients called his move “completely unconscionable.” Los Angeles County supervisors, who represent nearly 10 million people, intend to make it clear next week that the county’s jails will not serve as makeshift shelters for homeless people.And Ms. Bass’s retort served as a statement that Los Angeles leaders believe they can handle the homelessness crisis in their city just fine, thank you, without interference from Mr. Newsom.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Ohio Mother Killed Trying to Stop a Carjacking With Her Son Inside

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      The woman, 29, was struck by her own vehicle after the suspects began driving away, the police said.Detectives in Columbus, Ohio, this weekend were searching for two men as they investigated the death of a woman who was fatally struck by her own vehicle while trying to stop a carjacking that occurred with her 6-year-old son in the car. Alexa Stakley, 29, was carjacked shortly before 1:30 a.m. on Thursday while picking up her son at the home of a babysitter after wrapping up a shift waiting tables, according to the police. After putting the sleeping 6-year-old inside her 2022 silver Honda SUV, Ms. Stakley walked back toward the babysitter’s house to retrieve an item, according to a police report. As she turned back, Ms. Stakley saw her moving. She was seen “running toward her Honda and was heard screaming for her child,” the police report said. Moments later, Ms. Stakley was struck by the vehicle, suffering a fatal wound to the head. Shortly afterward, two men were seen running away from the area, abandoning the vehicle nearby, the police said. Police officers found the child inside the car unharmed. Carjackings have been called “an important public safety threat” by the Department of Justice, which earlier this year announced it had established 11 task forces to combat the crime in areas of particular concern, like Philadelphia, Chicago and Tampa, Fla. We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Pakistan Withers Under Deadly Heat and Fears the Coming Rains

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      Karachi, Pakistan’s largest city, endured days of temperatures above 100 Fahrenheit, made worse by power cuts and high humidity.In nearly every corner of Karachi, there are signs of the heat wave scorching the sun-baked city.Hundreds of patients suffering from heat-related illnesses pour into the hospitals every day, pushing them far past their capacity. Morgues overwhelmed by a surge in bodies are struggling to find space.Frustrated residents have begun blocking roads with stones and sticks to protest shortages of electricity and drinking water. Even the usually bustling markets and streets have emptied as people avoid leaving their homes unless they must.Karachi, Pakistan’s largest city and its economic hub, is the latest place to suffer as South Asia roasts under a blistering heat wave this summer, a brutal reminder of the deadly toll of climate change in a part of the world especially vulnerable to its effects, and in a country where ineffective governance and large economic disparities have magnified the sufferings of its poorest citizens.In a particularly dire eight-day stretch late last month, temperatures reached 104 degrees Fahrenheit (40 degrees Celsius), with high humidity adding to the misery. That was the hottest since 2015, a year when officials reported that more than 1,200 people died from heat-related causes in Karachi.With temperatures still hovering near 100 degrees Fahrenheit, the sense of crisis has persisted.“It feels like living in a furnace,” said Akbar Ali, 52, a rickshaw driver who has transported many heat-struck people to the hospital in recent weeks. “It’s terrible seeing people collapse on the street.”Inside a crowded children’s ward at a hospital in Karachi on Friday. Children and older people are particularly sensitive to excess heat.Insiya Syed for The New York TimesWe are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      As Heat Wave Bakes New Jersey, Residents Asked to Reduce Water Use

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      The intense and unusually early heat wave that has blanketed much of the Northeast for the past week continued on Sunday to scorch New Jersey, where excessive heat warnings or heat advisories were in effect in most of the state, according to the National Weather Service.Temperatures throughout the region were more than 10 degrees above average on Sunday, according to Joe DeSilva, a meteorologist with the Weather Service. Trenton, the state capital, reached 98 degrees — just two degrees shy of the city’s hottest recorded temperature, last logged in 1952, he said.The worst of the sweltering heat should be over by Sunday evening, Mr. DeSilva said, though temperatures were expected to remain in the 80s in the coming week.Officials in numerous communities urged residents — especially older people, homeless people and those with chronic health conditions — to prevent heat-related illness by staying hydrated, using air-conditioning, limiting strenuous physical activity and wearing loose, light-colored clothing. Pet owners should also monitor their animals for signs of overheating, such as excessive panting, drooling and lethargy, officials said.The state’s Department of Environmental Protection encouraged New Jerseyans to take advantage of the Chill Out NJ tool, an online map of public places where people can find air-conditioning, pools, splash pads, beaches or shady parks.The lengthy heat wave also prompted officials in some places, including Pennsville Township, Moorestown and Vineland in South Jersey, and Ridgewood, Denville and Butler in North Jersey, to announce mandatory or optional water restrictions, asking residents to refrain from washing their cars or watering their lawns. And at Red Bull Arena in Harrison, a National Women’s Soccer League game between Gotham F.C. and the Washington Spirit on Sunday was moved to 6 p.m. from 1:30 p.m. because of the heat.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More