Environmental Science

It's been 51 years since the first Earth Day, and while progress has been made in some areas, humanity still has had a major impact on the planet.

By Andrea Thompson

Satellite data shows just how much air quality has improved during the coronavirus crisis, from China, India, Italy and beyond.

By Marco Hernandez

A growing network of global activists is taking an alternative approach to saving the environment: Pushing to recognize natural ecosystems as having legal rights like humans.

By Stephanie Vermillion

Birds are — quite literally — living dinosaurs. Our quiz will test your knowledge of the fluffy, downy and winged dinos of the bygone Mesozoic era, from little Microraptor to the enormous Yutyrannus.

By Mark Mancini

Though certain parks or preserves have gotten the International Dark Sky Place designation before, this remote South Pacific island became the first entire country to be so honored.

By Nathan Chandler

The stratosphere is the second-lowest level in Earth's atmosphere. It's a bastion of ozone gas and rapid winds, where clouds are scarce, but life endures.

By Mark Mancini

The Pacific's Ring of Fire is a 25,000 mile long "ring" that's home to 75 percent of all the world's volcanic activity and 90 percent of the planet's earthquakes. So what makes this area so active?

By Mark Mancini

Since its discovery in 1870, the Wyoming cone geyser Old Faithful has wowed spectators with its predictable eruptions, but its eruptions are not quite as predictable or prodigious as they once were.

By Mark Mancini

Ice volcanoes form when it's freezing cold outside and choppy water is forced to erupt through a hole in the ice around a body of water, cascading down into the classic shape of a volcano.

By Jesslyn Shields

Even having to strike alone hasn't deterred these youth from getting out the message regarding the impending climate crisis. And what keeps them going, they say? Greta Thunberg.

By Jessica Murray

The rusty patched bumblebee (Bombus affinis) is on the verge of extinction and the state of Minnesota is doing something about it.

By Tara Yarlagadda

Not all fossils are found on dry land. In fact some of the most fascinating fossil finds in history have been submerged for centuries.

By Mark Mancini

It may seem cool to stack rocks for fun or artistic purposes but moving rocks may inadvertently threaten small mammals and insects and contribute to soil erosion.

By Melanie Radzicki McManus

China has joined the more than 120 countries outlawing certain types of single-use plastics, those convenient but controversial plastics we've all become so used to. What exactly are they, though, and is banning them really necessary?

By Stephanie Vermillion

Earth is a complex place, and its climate follows suit. That may explain why many of us are still confused about climate change. Think you can tell the facts from myths? Find out with this quiz.

By Mark Mancini

"The 26th century" doesn't roll off the tongue as easily as "the 21st century" does. But that hasn't stopped us from imagining what our hometown planet will be like in a few hundred years. Any guesses?

By Robert Lamb

You've probably heard of the Tropics of Cancer and Capricorn, but do you know the difference?

By Michelle Konstantinovsky

You've probably heard of the Tropics of Capricorn and Cancer, but do you know the difference?

By Michelle Konstantinovsky

The Arctic Circle is a region marked by frigid temperatures, strange sunlight and glaciers galore. And for hundreds of thousands of people, it's also home sweet home.

By Mark Mancini

This is not an easy question to answer, thanks to the mists of time. But historians have put forth several possibilities. An ancient tablet claims one king ruled for 28,000 years!

By Nathan Chandler

If it looks like a party is on, maybe they'll come back. Playing the sounds of a noisy, healthy coral reef can attract important fish species to devastated reef habitats.

By Jesslyn Shields

Mountain Lake in Virginia is best known for its starring role in 'Dirty Dancing.' But today, it's nothing more than a muddy pit that's all but dried up ... and geologists think they may know why.

By Stephanie Parker

Gondwana was a humongous landmass that persisted for 300 million years before it began to break up, forming all the continents in the modern Southern Hemisphere.

By Jesslyn Shields

These new devices may be used in the future to absorb more of the sun's energy than today's solar panels are capable of collecting.

By Patrick J. Kiger

Ice stupas are artificial glaciers that store frozen water to be used for hydrating crops in the driest stretches of the year in the high desert of Himalaya.

By Mark Mancini