Sustainability

These four lightbulbs augured a future with nuclear power.

On This Day in 1951, Four Illuminated Lightbulbs in Idaho Were Evidence of the First Time a Nuclear Power Plant Generated Electricity

Although it was just a byproduct of developing a new type of reactor, the generation of electricity from nuclear energy signaled a bright future ahead

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

In Ecuador, a glass frog from a new species identified in 2022, Hyalinobatrachium nouns, hangs from the underside of a leaf, seen from below.

The Andes’ Translucent Glass Frogs Need to Be Seen to Be Saved

The amphibians are at the mercy of mining operations that are destroying their ecosystems, but local communities throughout South America are fighting back

A selection of the bounty from Isabella Dalla Ragione’s orchard, including apples, pears, plums, almonds, hazelnuts and grapes.

Meet the Italian 'Fruit Detective' Who Investigates Centuries-Old Paintings for Clues About Produce That Has Disappeared From the Kitchen Table

Renaissance paintings, medieval archives, cloistered orchards—how one Italian scientist is uncovering secrets that could help combat a growing agricultural crisis

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

A rendering of the 3D-printed rounded hotel rooms

Workers Just Started Building the World's First 3D-Printed Hotel in the Texas Desert

In the dusty landscape surrounding the city of Marfa, a huge 3D printer is constructing 43 new rooms and 18 residential homes as part of an expansion of El Cosmico

Kids cool down at an animal-themed splash pad at Zoo Miami. Mist stations also help visitors avoid overheating on sweltering days.

In Miami, the Nation’s First Chief Heat Officer Charts a Course for Surviving on a Warming Planet

By building a broad coalition of partners across the political spectrum, the Florida metropolis is doing all that it can to keep the city cool

Los Angeles Mayor Karen Bass waves an Olympic flag on her return from the closing ceremony of the Paris games on August 12, 2024.

Can a City Known for Its Freeways and Gridlock Deliver a Car-Free Olympics? Los Angeles Thinks So

To make good on its promise, the 2028 host city is in a four-year sprint to ready its public transportation for the onslaught of athletes, coaches and spectators

Every pound saved in a car’s weight matters, reducing fuel consumption in gas-powered cars or extending the range of electric vehicles.

Automakers Are Making New Steels for Stronger and Lighter Cars

Novel materials are hitting assembly lines with just the right properties to build cars that are both safer and more fuel-efficient

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Can the Noise in Sports Arenas Be Turned Into Electricity?

Seventeen-year-old Gyeongyun Lily Min is hopeful it can someday, after testing the concept on a scale model of an NBA stadium

Crews even used purple glue while adhering the vulcanized rubber track to its asphalt base.

Why Is the Paris Olympics Running Track Purple?

The track incorporates recycled mussel and clam shells in a bid to help make the Summer Games the most sustainable yet

Travelers can get rewarded for participating in sustainable activities.

Copenhagen Is Rewarding Tourists for Good Behavior

A new initiative incentives activities like riding a bike, taking public transit and cleaning up litter

In order to build ships strong and technically savvy enough to traverse through some of the most remote and challenging landscapes on Earth, several cruise companies borrowed designs from other parts of the shipping industry.

How a New Line of Expedition Ships Is Turning the Tides on Polar Seas

High-tech features are making treacherous ocean passages feel tame

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More Than 98 Percent of Costa Rica’s Energy Is Renewable—Here’s How

This Central American country has an ambitious plan to reach climate neutrality by 2050

The Nesjavellir Geothermal Power Station. Geothermal power has long been popular in volcanic countries like Iceland, where hot water bubbles from the ground.

Is Geothermal Power Heating Up as an Energy Source?

Long confined to regions with volcanic activity, the method of harnessing energy from the Earth promises to become much more versatile thanks to new technologies

Workers install solar panels on the roof of King's College Chapel in Cambridge, England.

How King's College Added 438 Solar Panels to a 500-Year-Old Chapel

The project sparked debate over how to decrease carbon emissions while preserving the historic structure's architectural beauty

The Aria Resort & Casino, a striking pair of curved buildings on the Las Vegas Strip, bills itself as eco-friendly and water-efficient.

Las Vegas Is Going All In on Its Water Conservation Plan

As the Southwest dries, can a city notorious for excess find a way to survive with less?

Minerals and algae form patterns in the scalding hot water at Grand Prismatic Spring in Yellowstone National Park's Midway Geyser Basin. Yellowstone National Park has more than 10,000 thermal features, making it the largest concentration of active geysers in the world.

How a Microbe From Yellowstone's Hot Springs Could Help Feed the World

A Chicago startup has turned a fungus found by NASA into a protein-packed food

One potential tool to combat the growing affordable housing problem, which the National Low Income Housing Coalition says has grown to a need for more than 7 million homes, is 3D printing.

Can 3D Printing Help Address the Affordable Housing Crisis in the United States?

The construction is faster, cleaner and more affordable, but experts acknowledge some trial and error is needed

A dugong, also known as a sea cow, in a protected marine reserve in the Philippines. On the mammal’s underside, remora fish snack on parasites—and dugong poop.

The Dugong, a Huggable, Seagrass-Loving Sea Cow, Has a New Best Friend: Drones

Keeping tabs on the species' populations is surprisingly hard. A new aerial effort tracks the marks they leave behind

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