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Environment

Smithsonian magazine’s top science titles this year.

The Ten Best Science Books of 2024

From a deep dive on a fatal space shuttle disaster to a study of a dozen iconic trees, these are our favorite titles this year

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

On This Day in History

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

Grazing cows produce more methane than feedlot cows because of the fiber content of the grass they consume.

Eating Seaweed Could Make Cows Less Gassy, Slashing Methane Emissions From Grazing by Nearly 40 Percent

A new study finds that feeding seaweed pellets to grazing beef cattle dramatically reduces their greenhouse gas emissions

The plant-based egg substitutes available today are less than perfect. Food scientists are working hard to improve them — and, maybe, make them better tasting and more nutritious than the real thing.

Scientists Are Trying to Crack the Recipe for the Perfect Plant-Based Eggs

With new ingredients and processes, the next generation of substitutes will be not just more egg-like, but potentially more nutritious

A painted lady perches on a flower.

Where Do Butterflies Migrate From? Clues Can Be Found in Pollen on Their Bodies

Trillions of insects move around the globe each year. Scientists are working on new ways to map those long-distance journeys

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

Over the last few decades, wild turkeys have moved into cities, where they thrive thanks to few predators, abundant food and plenty of space to roam and roost.

Why Are Urban Turkeys Thriving?

As many wild populations decline, some city dwellers flourish—and may become a source for reintroductions to rural areas

An earwig with eggs

A Deep Look Into the Wacky and Wild Lives of Earwigs

The insects participate in elaborate courtships, are devoted parents, occasionally eat each other and have a gregarious nature

The BYU research team at Boca Chica Beach, Texas.

Here’s What a SpaceX Starship Rocket Launch Sounds Like, According to New, Detailed Data

Just six miles away from the mega-rocket’s fifth test flight, the noise level was equivalent to a rock concert, researchers found

Different species of frogs call out in various ways, and they may sound like musical instruments, construction tools or other animals.

From a Motorcycle Revving to a Pig Oinking, Eight Amazing Sounds Made by Frogs

All over the world, different types of frogs call out in various ways to warn others or attract mates

The Santa Marta sabrewing, a highly elusive bird, showed itself in 2022, in Colombia, giving hope to conservationists.

Dedicated Scientists and Birdwatchers Tracked Down These Five ‘Lost’ Birds

A worldwide search party is using 21st-century tools to uncover long-unseen species, one of which hadn’t been found since the 19th century

A Komodo dragon flicks its tongue out on Komodo Island, part of Komodo National Park in Indonesia.

The Most Infamous Komodo Dragon Encounters of the Century, From a Fatal Attack on an 8-Year-Old Boy to a Zookeeper Bitten by a Battling Animal

As tourism to see the endangered species is on the rise and their habitat decreases, on some very rare occasions, the animals bite

An armored mist frog warms itself on a wet rock. Once thought extinct, this species was rediscovered in locales where it has access to the sun’s warmth, which can help frogs fight the often-deadly fungal infections.

How Frogs Are Kicking Back Against a Lethal Fungus

Scientists are seeing signs of resistance to the infections that have been wiping out the world’s amphibian populations—and they’re developing methods to fight the pathogen

The white substance on this fly is a fungus called Entomophthora muscae.

This Parasitic Fungus Turns Flies Into Zombie Insects

The pathogen takes over the brains of its hosts and controls them for its own sinister ends

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

Artist Ron Louque designed the 2002 federal duck stamp with this portrait of two snow geese soaring through the air.

Art Meets Science

The ‘Super Bowl of Wildlife Art’ Is All About Ducks, and It Has Protected America’s Wetlands for 90 Years

Introduced in 1934, the federal duck stamp contest has raised more than $1.2 billion and protected at least 6.5 million acres across the nation. Now, an art exhibition at Connecticut’s Bruce Museum honors the competition’s history

At least 16,425 of the 47,282 tree species examined in a new IUCN report are at risk of extinction.

More Than One in Three Tree Species Around the Globe Are at Risk of Disappearing, New Report Finds

An assessment from the International Union for Conservation of Nature paints a grim picture of the extinction risk of the world’s trees

Grizzly 399, along with one of her cubs, in Grand Teton National Park in 2021.

The ‘World’s Most Famous Grizzly’ Was Killed by a Car. Was Her Death Preventable?

Grizzly 399 became a celebrity of Grand Teton National Park in her lifetime. Now, her death has drawn attention to wildlife-vehicle collisions and how they might be reduced

A rock layer showing the S2 impact tsunami bed with chunks of ripped-up seafloor

A Giant Meteorite Ripped Up the Seafloor and Boiled Earth’s Oceans 3.26 Billion Years Ago. Then, Life Blossomed in Its Wake

Geologists suggest the catastrophic impact of “S2” delivered key nutrients to the oceans, prompting microorganisms to thrive

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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