Environmental Science
The environment is truly a thing of beauty and should be protected whenever possible. What can we do to save the environment, and what new technology is available to help us?
The Euphrates River, at the 'Cradle of Civilization,' Is Drying Up
Study Says 2035 Is Climate Change Point of No Return
5 Ideas for Doubling the World's Food Supply
What Are the Biggest Lakes in the U.S.?
The Tallest Mountain in the U.S. and 7 Close Contenders
The Cleanest Lakes in the U.S. Aren't the Same as the Clearest
How a Lithium Mine Works and Impacts Local Communities
How to Sell Electricity Back to the Grid
Are there any risks associated with the production of wind energy?
The World Hits 8 Billion People; Is That Good or Bad?
Quiz: Can You Tell Climate Change Fact From Fiction?
Did the Mayan civilization end because of climate change?
Top 5 Green Robots
5 Things to Consider When Building a Solar-powered Home
What Uses the Most Electricity in a Home?
Learn More / Page 6
How do they measure "sea level"? Is it the average of the tides? And is the sea level actually rising or not?
On the Flintstones, a small bird sits inside the light and turns it on every night before he goes to bed. In a modern streetlight, a small circuit replaces the bird.
Let's say you have a lunch date to make - and it's on the other side of the planet. Wouldn't it be convenient to pop down a hole through Earth's innards? But what would really happen if you did?
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Green roofs, long popular in Europe, are making their way into the United States. Find out what a green roof is and how it can solve some problems conventional roofs have.
By Sarah Dowdey
Clean coal -- isn't that an oxymoron? Not anymore. See how energy companies are using coal in cleaner ways to generate massive amounts of electricity. Alternative fuels may be making headway, but coal isn't used up yet. Find out why.
By Sarah Dowdey
Vertical farming is a method of large-scale farming in an urban environment. Learn about the benefits of a vertical farm and vertical farming technology.
For more than 40 years, scientists have tried to figure out what's causing large parts of Canada to be "missing" gravity. The force of gravity around Hudson Bay is lower than surrounding areas. Learn about two theories that may explain the phenomenon.
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Diamonds are beautiful and popular - but not everyone can afford these gems. While man-made versions are less expensive, most lack the luster and brilliance of the real thing, except moissanite. See how it compares!
By Melissa Russell-Ausley
Electrical power is a little bit like the air you breathe: You don't really think about it until it is missing. There are good reasons the power grid distribution system works the way it does, though it can lead to some big problems.
By Marshall Brain & Dave Roos
The dead zone, caused by massive amounts of algae growth, is a vast area off the Gulf of Mexico that is deadly to marine life. How is human activity making the dead zone worse?
Recycling is a pretty simple concept: take something that isn't useful anymore and make it into something new. Learn about the process and the good and bad of recycling.
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While actual footprints measure size, weight and speed, carbon footprints measure how much carbon dioxide (CO2) we produce in our daily lives. Do you know how big your carbon footprint is?
By Sarah Dowdey
Eco-conscious people purchase carbon offsets to help reduce worldwide greenhouse gas emissions. But do offsets actually help, and what does Pink Floyd have to do with them?
By Sarah Dowdey
You may remember the blackout that occurred on Aug. 14, 2003. It was the biggest in U.S. history. And just like every major blackout, it raised a lot of questions about how the power-distribution system works.
Global warming has become a common term, but it's not commonly understood. Learn about global warming and the greenhouse effect.
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We'd be up a creek without Earth's atmosphere and the greenhouse effect it provides, but it turns out that an overactive greenhouse effect can result in a similarly devastating outcome.
You probably know that the North Pole does not stay in the same spot. The North and South Poles can actually change positions. What causes this? Find out in this article.
The Georgia Aquarium is the world's largest aquarium. How did they build habitats for all the animals, and what does it take to keep them fed and healthy? Find out about the aquarium and learn about the animals that call it home.
When the wind blows, particles in the gust of air are moving quickly. And that motion carries kinetic energy, which can be captured and harnessed to create electricity. The principle behind a wind-electric turbine isn't too different from an ordinary dam -- only it's capturing wind instead of water.
By Julia Layton
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In 2023, the U.S. bottled water industry was worth $94 billion, even with the rise of popular reusable water bottle brands.
By Julia Layton
Have you ever wondered what would happen if we were able to flip a switch and turn the Earth's gravity off for a day? The end result may surprise you.
The Sierra Club lobbies for environmental preservation and engages members in fun wilderness excursions.
By Sarah Dowdey
On a planet that is 70 percent water, people don't have enough clean, safe water to drink. We're in a water crisis, and water rights are becoming a big issue. What happens if we just plain run out?
By Josh Clark
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The sea scorpion may have been the largest bug to ever live on the Earth, according to a recent find. Learn more about the giant sea scorpion.
By Josh Clark
It's evident the debate over climate change is a heated one. Are skeptics clouding the public judgment for money? Are climate-change believers merely alarmists who risk the present for the future?
By Josh Clark