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?
Study Says 2035 Is Climate Change Point of No Return
5 Ideas for Doubling the World's Food Supply
5 Earth Facts to Blow Your Kid’s Mind
7 Power Crystals for Protection and Positive Energy
Carnelian Meaning: Healing Properties, Benefits, & Symbolism
Creating Crystal Grids: A Step-by-Step Guide
How to Sell Electricity Back to the Grid
What Wind Power Critics Who Cry 'Bird' Get Wrong
Are there any risks associated with the production of wind energy?
The World Hits 8 Billion People; Is That Good or Bad?
Tiny Island of Niue Is World's First 'Dark Sky Nation'
Quiz: Can You Tell Climate Change Fact From Fiction?
How Zero-energy Homes Work
5 Myths About Green Technology
Top 5 Ways to Save the Planet with Bicycles
Learn More / Page 29
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
Carbon trading, sometimes called emissions trading, is a market-based tool to limit greenhouse gases. The carbon market trades emissions under cap-and-trade schemes or with credits that pay for or offset GHG reductions.
By Sarah Dowdey
Advertisement
The 1993 movie "Jurassic Park" did a good job of bringing the idea of cloning dinosaurs into popular culture. It portrayed dinosaur cloning in a way that made sense to a lot of people, but is it really possible?
Every time a new fossil is found, one of the first things scientists determine is how old that fossil really is. But how do they determine it, and how can they be completely accurate?
Have you ever wondered what happens when you flip a switch to turn something on? You're completing an electric circuit, allowing a current, or flow of electrons, through the wires.
Saber-tooth cats have long been likened to tigers, but they aren't tigers at all. While they share some physical traits and hunting practices with tigers, saber-tooth cats are also quite different.
Advertisement
One iceberg sank the unsinkable Titanic, and another exploded in front of an expedition. These floating chunks of ice carry their bulk deceptively below the surface of the water. What else are they hiding?
Archaeology is the study of humanity's material remains -- even a piece of an ancient pot can tell us a lot about the past. But how do archaeologists make sense of these relics?
By Sarah Dowdey
Seventy percent of the Earth's fresh water is in polar ice caps, the those caps calve icebergs all the time. So why can't we use those icebergs to provide fresh water that so many countries are in desperate need of?
Right now, landfills are all over the place. Yet, no one wants to live near one. So, what if we combined all of those landfills into one? How much space would it take up?
Advertisement
In its purest form, it's odorless, nearly colorless and tasteless. It's in your body, the food you eat and the beverages you drink. All forms of life need it. What substance is more necessary to our existence than any other? Water.
Carbon dioxide released from burning fossil fuels is a prime suspect in global warming. Could we mitigate the problem by burying the CO2 deep within the ocean?
By Josh Clark
No one likes paying bills. But you wouldn't have quite so many if you lived off the grid. How do you create enough energy to ditch public utilities?
One company's SkyMine technology aims to capture industrial carbon dioxide emissions and turn them into an endlessly useful product: Baking soda. But how do pollutants become a household staple?
By Julia Layton
Advertisement
Earthquakes and volcanoes get all the press. But the landslides they trigger are often more devastating. What makes the ground suddenly rip downhill, taking trees and homes with it?
Thousands of women around the world choose to combat ecological problems -- they're known as ecofeminists. But what would you do if you found out your house sat atop a toxic waste dump?
Polar bears are facing a grim future as global warming melts their Arctic home. What problems are they up against and what's being done to save them?
By Julia Layton
Also known as "freak waves," these colossal walls of water have been alleged to be in the range of 100 feet or more. Learn what separates rogue waves from other large waves, what causes them and find out about some of the better-known rogue wave incidents.
Advertisement
How do we reduce greenhouse gas emissions? A carbon tax is one answer. A simpler alternative to cap-and-trade schemes, a carbon tax encourages energy efficiency and reduced consumption.
By Sarah Dowdey
In "Back to the Future," Doc Brown throws garbage into Mr. Fusion, powering his time machine. We might be closer than you think to generating electricity for our homes using trash.
Why waste drinkable water on your yard when your old bathwater will suffice? That's the idea behind gray water reclamation -- getting the most out of your water through reuse.
By Robert Lamb
You might think of solar panels as large racks of rigid panels on someone's roof, but newer solar cells are more flexible and efficient.
Advertisement
Scientists are stockpiling the world's seeds, organizing them in giant libraries of planting possibilities. Is every type of plant included? Or, are the seeds of pesky plants shunned?
By Debra Ronca
If oil shale can decrease U.S. dependence on foreign nations for oil, why aren't we making it yet? We're caught between a rock and a hard, geopolitical place.
By Josh Clark