Featured Article: How Urban Planning Works
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? See more »
green science library
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.
How Eco-anxiety Works
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?
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How Eco-terrorism Works
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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How Ecofeminism Works
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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How Global Warming 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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How Gray Water Reclamation Works
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.
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How Green Pavement Works
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?
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How has Earth Day evolved?
Earth Day 1970 didn't have the low-key feel of today's celebration. It was a time for protest -- some of it violent. How did Earth Day transform from a day of dissent to one of public service?
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How is L.A. like ancient Rome?
L.A. and ancient Rome have more in common than a culture of excess. Both cities turned to complex systems of siphons and aqueducts to solve their water problems.
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How Landfills Work
What happens to all of that trash the dump truck picks up every week? It doesn't just disappear into a parallel universe: Each day, we all contribute to the local landfill, and the waste disposal system is pretty involved. Learn what happens to the trash after you throw it away.
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How Light Pollution Works
Artificial light lets us stay up through the night or feel secure in the dark. But those midnight noons push our bodies out of whack and confuse the natural world. Is there a fix for light pollution?
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How Living Off the Grid Works
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?
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How much power does the world consume?
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?
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How Natural Burial Works
Ashes to ashes, dust to dust -- unless of course you've been embalmed, buried in a steel and hardwood coffin and interred in a concrete vault. For some people, the luxurious excess that accompanies traditional burial is no longer appealing.
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How Net Metering Works
Net metering could turn your home power setup into a money maker -- that is, if your state allows it. How can you start charging the electrical grid?
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How Organic Farming Works
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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How Ozone Pollution Works
We want the ozone layer, but we don't want ozone pollution... Good in the atmosphere but bad on the ground? Find out about ozone pollution, how it affects you and what you can do about it.
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How Recycling Works
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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How Seed Banks Work
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?
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How Solar Cooking Works
If you've ever seen a kid frying ants with a magnifying glass, you know that the concentrated power of the sun can create great heat. But what if that heat were applied to something a bit more productive -- something like cooking food?
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How Sustainable Communities Work
A sustainable community might not be as radical as you think. What's so crazy about minimizing waste, reducing consumption and preserving green space?
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