Featured Article: 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? 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.
Will alternative fuels deplete global corn supplies?
We humans like to trade one problem for another. We give up drinking only to take up smoking. Will we also exchange a reliance on dwindling fossil fuels for a food shortage caused by ethanol production?
See more »Air Pollution
Air Pollution, the contamination of the air by impurities. These impurities, called pollutants, can occur naturally or they can be produced by human activities.
See more »Can we plug the hole in the ozone layer?
The ozone layer prevents much of the sun's ultraviolet (UV) light from reaching the Earth. The bigger the hole in it gets, the more of this dangerous light reaches us. What can we do about it?
See more »Earth Day
From Al Gore to hippies galore, the message is clear: Every day should be earth day. Here's how.
See more »Garbage and Refuse Disposal
Garbage and Refuse Disposal, the collection and dumping or destruction of food waste and other discarded material.
See more »How can ozone be both good and bad?
During the summer I am always hearing about ozone warnings in my city. This ozone is bad. But then I hear about the ozone layer, which is good. How can ozone be both good and bad?
See more »How do plants compare to solar cells when it comes to collecting solar energy?
How do plants compare to solar cells when it comes to collecting solar energy? Would you get more power from an acre of ground by putting solar cells on it or by raising plants?
See more »How many sheets of paper can be produced from a single tree?
We know that paper comes from trees, but just how much does it take? Let's do the math and figure out how much paper your average tree can be made into.
See more »Insecticide
Insecticide, a substance that destroys insects by chemical action. Some insecticides also destroy mites, ticks, and spiders.
See more »Is there a way to get energy for free?
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?
See more »Pollution
Pollution, the presence of harmful or irritating substances, called pollutants, in the environment.
See more »Sewage
Sewage, the mixture of water and waste products carried off through a drainage system of underground pipes, or sewers.
See more »Waste, Industrial
Waste, Industrial. All industries have waste products. Among the great variety of industrial wastes that are generated are acids, metallic compounds, oils, and complex synthetic chemicals.
See more »What Can I Do About Global Warming?
You hear about global warming all the time on the news. If you wanted to help, what could you do? Well, you could start with a light switch.
See more »Why do some scientists want to scatter tubes throughout the open ocean?
Some scientists think that the ocean is a potentially enormous storage ground for carbon dioxide. Could thousands of aquatic tubes help sequester carbon, or is it all just a pipe dream?
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