Pollution

Researchers found higher levels of microplastics in brain tissue than in liver and kidney tissue.

The Human Brain May Contain as Much as a Spoon's Worth of Microplastics, New Research Suggests

The amount of microplastics in the human brain appears to be increasing over time: Concentrations rose by roughly 50 percent between 2016 and 2024, according to a new study

Nepal is raising the fee for the first time in about a decade.

The Price to Climb Mount Everest Will Rise to $15,000 This Year

Foreign climbers who want to try reaching the top of the 29,032-foot-tall peak will face higher permit fees in Nepal starting in September

The endangered Woodville Karst cave crayfish (Procambarus orcinus)

Freshwater Animals Are More Fragile Than Thought, With Nearly a Quarter Threatened With Extinction, Study Finds

Species in Lake Victoria, Lake Titicaca, Sri Lanka’s Wet Zone and the Western Ghats of India are particularly vulnerable to the effects of agriculture, human infrastructure and climate change, per the paper

At the same time as the Romans were building the Colosseum, they were also breathing in high amounts of toxic lead from silver mining and smelting operations.

Ancient Romans Breathed in Enough Lead to Lower Their IQs, Study Finds. Did That Toxin Contribute to the Empire’s Fall?

Using Arctic ice core samples, researchers estimate silver mining and smelting released enough lead during the Pax Romana to cause a 2.5- to 3-point drop in IQ

With its clear, dark skies, Colorado's Browns Canyon National Monument is an ideal spot to admire planets, constellations and the Milky Way.

A New Dark Sky Park in Colorado Offers a Front-Row Seat to the Cosmos

This week, Browns Canyon National Monument, a 21,586-acre protected natural area in central Colorado, achieved International Dark Sky Park certification

A policeman uses flares to guide traffic during the Great Smog of 1952.

How an Extreme Combination of Fog and Air Pollution Brought London to a Standstill and Resulted in Thousands of Fatalities

On this day in 1952, buses stood still, cars were abandoned in the street, and residents couldn't see even a few feet in front of themselves as the lethal Great Smog descended on the city

Lake Tahoe's Emerald Bay is one of the sites where telephone cables were recently removed from.

Crews Remove Miles of Abandoned, Lead-Coated Telephone Cables From the Bottom of Lake Tahoe

The cables have been resting on the lakebed for decades, raising fears from environmentalists and residents about possible lead contamination

A Hickory Nut Gorge green salamander rests on a log.

Hurricane Helene Battered the 'Salamander Capital of the World' With Floods and Landslides. Will the Beloved Amphibians Survive the Aftermath?

The storm decimated a region rich with dozens of species already struggling with habitat loss and disease

Researchers collect exhaled breath from a wild bottlenose dolphin during a health assessment conducted by the National Marine Mammal Foundation and its partners in Louisiana's Barataria Bay.

Scientists Have Found Microplastics in Dolphin Breath for the First Time

Each of the 11 dolphins sampled exhaled at least one suspected particle of microplastic, which researchers say “highlights how extensive environmental microplastic pollution is”

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Here's How Weather Balloons Can Harm Marine Animals

Latex balloons designed to collect high-altitude data can become a threat after they burst

Two lynx shelter from the wind behind their parent, who looks into the camera.

See 15 Winning Images From the Wildlife Photographer of the Year Contest

Breathtaking shots shine a light on the wonders of wildlife and the threats that human activities pose to the natural world

Thirty-six homes—the world’s last topped with a traditional eelgrass roof—all sit here on Laeso.

Could Eelgrass Be the Next Big Bio-Based Building Material?

On the island of Laeso in Denmark, one man is reviving the lost art of eelgrass thatching and, in doing so, bringing attention to a plant that has great potential

Annual mammograms are recommended for women in their 40s and above, but new research suggests younger adults are increasingly at risk for breast cancer.

Breast Cancer Cases Are Rising Among Younger Women, Report Finds

Though breast cancer mortality is declining overall, Asian American women and women under 50 have experienced an uptick in diagnoses of the disease

Microplastics are tiny pieces of plastic that have been found all over the world and in the human body.

Scientists Find Microplastics in Human Brain Tissue Above the Nose

A new study identified the tiny pollutants in the olfactory bulbs of eight cadavers, suggesting microplastics can travel through the nose to the brain

Germany’s North and Baltic Seas are littered with munitions from the First and Second World Wars, such as shells—as shown here—once fired from German battleships.

A Massive Effort Is Underway to Rid the Baltic Sea of Sunken Bombs

The ocean became a dumping ground for weapons after Allied forces defeated the Nazis. Now a team of robots and divers is making the waters safer

Plastic pollution in Madagascar

Humans Pollute the Environment With 57 Million Tons of Plastic Each Year, Study Suggests

Scientists used A.I. to model local waste management in 50,000 municipalities worldwide and say the results suggest a need to improve access to waste collection systems

The munitions are primarily located in Lake Thun, Lake Brienz, Lake Lucerne and Lake Neuchatel.

For Decades, Switzerland Dumped Munitions Into Its Pristine Alpine Lakes. Now, It Wants Them Gone

Officials are offering cash rewards for the best strategies to safely remove the submerged weapons

The Mount Everest Base Camp, at 17,598 feet high, hosts climbers acclimating to the elevation before they make their ascent.

More Than 200 Dead Bodies Have Been Left Behind on Mount Everest, and Many Mark the Path to the Summit

Mountaineers who perished on the world's highest peak have become landmarks for the living, though recovery crews have made risky expeditions to remove some of the corpses

Vultures clean up carcasses quickly, preventing bacteria and pathogens from proliferating. 

When Vultures Nearly Disappeared in India, Half a Million People Died, Too, Study Finds

By being nature's clean-up crew, the often maligned birds help prevent the spread of diseases, according to a new study

After delays and months of uncertainty, triathletes finally took the plunge into the Seine River in Paris.

Olympians Finally Got to Swim in the Seine River

After months of uncertainty, the women's and men's triathlon events kicked off with a dip in the long-polluted waterway that runs through the heart of Paris

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