Environmental Science

As high-yield oil supplies become harder to find, energy companies are turning to oil sands: mixtures of bitumen, sand and water. How do you extract oil from mucky, viscous soil?

By Maria Trimarchi & Desiree Bowie

Haunted by ideas of your body polluting the Earth after you're gone? Microbial fuel cell technology could allow you to harness the energy of your own decomposition to power batteries.

By Maria Trimarchi

You’ve probably seen some plastic labeled “BPA free,” but does that make it safer?

By Jennifer Horton & Sascha Bos

We know that humans are largely responsible for fueling global warming with our carbon emissions. So what if we could seize all that carbon and squirrel it away in a safe place? Well, we can. It's just hard and really expensive.

By Debra Ronca & Mark Mancini

Hollywood makes T. rex seem fast and agile, but some scientists think it was a scavenger, like a vulture. So which was it?

By Tracy V. Wilson

In this mass graveyard, workers dismantle 52,000-ton ships using simple hand tools. Why would anyone want to work at Alang? Is this place doing the world a service by recycling obsolete ships?

By Sarah Winkler

Rough times call for creative measures. The world is filled with oceans, and oceans are filled with wave energy that could potentially be transformed into power. Is wave energy a viable fossil fuel alternative?

By Jane McGrath

Depending on who you ask, urban sprawl is either the best thing that ever happened to growing families -- or the downfall of civilization and the environment as we know it. Learn about the history and consequences of this American phenomenon.

By Alia Hoyt

Many people think that beautiful, blazing sunsets are one upside to living with the smog that hangs over polluted cities. Are they right? Does smog actually enhance sunsets?

By Julia Layton

Ever since its discovery in 2000, a dinosaur fossil named Leonardo has held the interest of paleontologists the world over. A 3-D model of the animal even toured the world. So what's the big deal?

By Tracy V. Wilson

Usually we're focused on our personal power consumption -- wondering why our gas bill went up or took a dip. But what if we added up everybody's power consumption? How much would it be?

By Maria Trimarchi

With the global food crisis, some people feel that using food to make biofuel just doesn't make sense. Could algae be a solution? How could algae possibly fuel cars and even airplanes?

By Stefani Newman

Wetlands may look murky and even creepy, but their value is clear. They soak up floodwaters and filter runoff before it enters our lakes and streams. How can we protect these spongy areas?

By Debra Ronca

Are wind farms and other renewable energy sources the closest we can come to free energy? Isn't there some crackpot invention out there that you can set up in your backyard?

By Jessika Toothman

What if you could scrub out carbon dioxide emissions before they ever dirtied the atmosphere? This exciting technology could do just that, but will the benefits outweigh the costs?

By Jennifer Horton

Dinosaur eggs and the embryos inside can teach us a lot about dinosaur reproduction and behavior. But how do scientists get the rocky embryos out from the equally rocky shells?

By Tracy V. Wilson

It's colorless, odorless and definitely life-sustaining, but is it invisible to the naked eye? Not usually. So what's going on with everyone's favorite liquid?

By Robert Lamb

Experts expect more than 1 billion climate refugees by the year 2050. Where will they go and how will the world feed, clothe and shelter them?

By Maria Trimarchi & Sarah Gleim

While it's good to be environmentally accountable, too much eco-angst can spiral into an actual anxiety disorder. What makes people lose sleep thinking about their big, muddy carbon footprints?

By Stephanie Watson

We all know the cartoons of prehistoric people running from dinosaurs aren't realistic. But many animals living today have ancestors from that time.

By Tracy V. Wilson

Emperor Qin ordered 7,000 generals, cavalrymen and archers to protect his mausoleum. What's so odd about that? Well, they were made of terracotta.

By Cristen Conger

They may seem like a fun water sport or a noisy nuisance, but whatever your stance on personal watercraft, there's no denying they pollute. So how bad are they?

By Julia Layton

If you've ever seen a geyser letting off steam or witnessed a fuming volcano simmering under pressure, you know that the interior of the Earth is really hot. So where does all that heat come from, and is there any way to harness it?

By Stephanie Watson

Four fundamental forces of nature are behind all that we do, from falling down to orbiting the sun. Learn about the four fundamental forces of nature.

By Craig Freudenrich, Ph.D. & Yara Simón

Plastic bags are generally unsustainable. Even if they are biodegradable, they take roughly 1,000 years to fully break down. Minnesota company NatureWorks has come up with a green plastic bag, but how eco-friendly is it?

By Josh Clark