Green Science
Green Science is the application of eco-friendly thinking to scientific disciplines. Learn about global warming, pollution and other impacts on nature and the planet, plus what we can do to combat them.
Study Says 2035 Is Climate Change Point of No Return
5 Ideas for Doubling the World's Food Supply
10 Earth Day Activities for Families
Is Africa Splitting in Two? Really? Here's the Scoop
What Exactly Is the Eye of the Sahara, aka the Richat Structure?
The Driest Place on Earth: Chile's Atacama Desert
How to Sell Electricity Back to the Grid
Are there any risks associated with the production of wind energy?
How much energy in a hurricane, a volcano, and an earthquake?
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 3
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.
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.
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
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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
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
Crews have to race to contain the damage from major oil spills to prevent damage to beaches, death to marine life and birds, and devastation to local wetlands. So how do they clean them up?
By Josh Clark & Sarah Gleim
Consumers are becoming more and more knowledgeable about food safety and their health. As a result, organic farming has entered the agriculture mainstream. But what methods must be used, and how is organic farming certified?
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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?
It's not really green. It's "green." Unlike asphalt, green pavement is permeable, which means it lets rain soak through to the ground rather than roll off. How does this help our environment?
By Debra Ronca
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?
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?
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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
The word "ozone" gets tossed around conversation as casually as a softball, but how many of us could really describe what the ozone layer is? The "hole" in it isn't exactly a hole.
By Jane McGrath
If you've ever walked the New York City streets in July, you've experienced the misery of this phenomenon. Why do cities heat up like furnaces while surrounding rural areas remain cooler?
By Jane McGrath
Scientists say that as of May 2007,. more people now live in urban than in rural areas. So how do planners make cities work for all those people?
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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.
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
Protecting the Earth is serious business for a radical group of environmental and animal activists dubbed eco-terrorists. Who are they? Why does the FBI consider them a top priority?
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Forest-fire prevention has been a touchstone of American consciousness since the creation of Smokey the Bear in the 1940s. But now, environmental experts believe that some amount of fire is good for the forest too.
Introducing a new species into an ecosystem can have unforeseen and disastrous consequences for the species that already live there.
Found in everything from plastic shopping bags to water bottles to adhesives, paints and DVDs, industrial resins tend to have a bad rap when it comes to their environmental impact. Can new, sustainable options turn their image around?
By Chris Warren
You probably think all parasites are disgusting little critters, but that's not always the case. Several are actually critical to the planet.
By Mark Boyer
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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?
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?