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How does air pollution impact your brain?

Image credit: Ionut Stefan We’ve known for some time that air pollution is bad for human health. However, the focus was mostly on the lungs, and to some extent, the heart. After all, airborne pollutants are inhaled through the lungs and can reach the heart through the bloodstream, so it’s not surprising these take the brunt of the damage. But somewhere along the way, it became somewhat mainstream to consider how air pollution might affects brains too. What I found surprising was the recency of

Light pollution prolongs avian activity

If the songbirds in your neighborhood are waking you up earlier and chirping well into the evening, blame light pollution. Artificial light touches nearly every corner of Earth’s surface, and a new study shows that it’s messing with birds’ biological clocks. Researchers analyzed a global acoustic dataset of more than 60 million recorded birdsongs representing more than 580 diurnal bird species. The findings, published Thursday, August 21, in the journal Science, show that light pollution has pr

Birds Across the World Are Singing All Day for a Disturbing Reason

If the songbirds in your neighborhood are waking you up earlier and chirping well into the evening, blame light pollution. Artificial light touches nearly every corner of Earth’s surface, and a new study shows that it’s messing with birds’ biological clocks. Researchers analyzed a global acoustic dataset of more than 60 million recorded birdsongs representing more than 580 diurnal bird species. The findings, published Thursday, August 21, in the journal Science, show that light pollution has pr

Long-term exposure to outdoor air pollution linked to increased risk of dementia

Dementias such as Alzheimer's disease are estimated to affect more than 57.4 million people worldwide, a number that is expected to almost triple to 152.8 million cases by 2050. The impacts on the individuals, families and caregivers and society at large are immense. While there are some indications that the prevalence of dementia is decreasing in Europe and North America, suggesting that it may be possible to reduce the risk of the disease at a population level, elsewhere the picture is less p

There Is a 100 Percent Chance That Your Body Is Deeply Contaminated With Dangerous Substances

Image by Getty / Futurism Developments The start of this year marked more than a quarter of the way through the 21st century. And though 2025 might not be full of flying cars and robot servants, there are a few sci-fi tropes that ended up panning out: novels like George Orwell's "1984," and Phillip K Dick's "Do Androids Dream of Electric Sheep?" are alive and well as real-world police use expansive surveillance networks to bust criminals before they even do anything wrong, while the sex robot m

Electric cars produce less brake dust pollution than combustion-engine cars

“It’s not just the tailpipe y’all,” joked one Electrek commenter, alluding to the black discolorations on alloy wheels visible proof of a less infamous city pollutant: brake dust. For decades, exhaust emissions have been the focus of city-air cleaning initiatives, but a new wave of research indicates that the real story goes far beyond the muffler. Image credit to rawpixel.com | License details A trailblazing study by EIT Urban Mobility, surveying the busy streets of London, Milan, and Barcelo

Electric cars produce far less brake dust pollution than combustion-engine cars

“It’s not just the tailpipe y’all,” joked one Electrek commenter, alluding to the black discolorations on alloy wheels visible proof of a less infamous city pollutant: brake dust. For decades, exhaust emissions have been the focus of city-air cleaning initiatives, but a new wave of research indicates that the real story goes far beyond the muffler. Image credit to rawpixel.com | License details A trailblazing study by EIT Urban Mobility, surveying the busy streets of London, Milan, and Barcelo

You Don’t Want to Know Where Scientists Just Found 27 Million Tons of Plastic

Despite the hundreds of millions of metric tons of plastic floating in our oceans—not to mention the microplastics in our saliva, blood, breast milk, and semen—researchers have been unable to account for all the plastic ever produced. A new study has just tracked down a large portion of it. Researchers from the Royal Netherlands Institute for Sea Research (NIOZ) and Utrecht University claim to be the first to provide a real estimate of ocean-polluting nanoplastics. Their research indicates that

Millions Of Americans Are Being Advised Not To Go Outside

In the wake of massive wildfires in Canada's Manitoba province, people thousands of miles away are being warned to stay indoors thanks to the noxious ash and smoke that's traveling on the wind to their homes. As flagged by Newsweek, people who live in eight American states (and four Canadian provinces) are now under air pollution warning — and as an air quality map shows, the regions impacted have tens of millions of residents. According to AirNow — which publishes a real-time, color-coded air

Wildfires are challenging air quality monitoring infrastructure

Ten years ago, Tracey Holloway, an atmospheric scientist at the University of Wisconsin–Madison, would have said that air pollution in the United States was a huge success story. “Our air had been getting cleaner and cleaner almost everywhere, for almost every pollutant,” she said. But in June 2023, as wildfire smoke from Canada spread, the air quality dropped to historically low levels in her home state of Wisconsin. Just last month, the region’s air quality dipped once more to unhealthy level

Air pollution may contribute to development of lung cancer in never-smokers

Now, a study published on July 2 in Nature has uncovered compelling genomic evidence that points to air pollution—and other environmental exposures—as a potential major factor behind this growing public health concern. The study was jointly led by researchers at the University of California San Diego and the National Cancer Institute (NCI), part of the National Institutes of Health (NIH). “We’re seeing this problematic trend that never-smokers are increasingly getting lung cancer, but we haven’

Air Pollution May Contribute to Development of Lung Cancer in Never-Smokers

Now, a study published on July 2 in Nature has uncovered compelling genomic evidence that points to air pollution—and other environmental exposures—as a potential major factor behind this growing public health concern. The study was jointly led by researchers at the University of California San Diego and the National Cancer Institute (NCI), part of the National Institutes of Health (NIH). “We’re seeing this problematic trend that never-smokers are increasingly getting lung cancer, but we haven’

xAI faces legal threat over alleged Colossus data center pollution in Memphis

After thermal imaging appeared to show that xAI lied about suspected pollution at its Colossus supercomputer data center located near predominantly Black communities in Memphis, Tennessee, the NAACP has threatened a lawsuit accusing xAI of violating the Clean Air Act. In a letter sent to xAI on Tuesday, lawyers from the Southern Environmental Law Center (SELC) notified xAI of the NAACP's intent to sue in 60 days if xAI refuses to meet to discuss the groups' concerns that xAI is not using the re