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How can algae be converted into biofuel?
auto.howstuffworks.com/fuel-efficiency/biofuels/convert-algae-to-biofuel.htm
How can algae be converted into biofuel? Read about how algae is converted to biofuel at HowStuffWorks.
Will the U.S. Ever End Its Dependence on Foreign Oil?
science.howstuffworks.com/environmental/energy/cut-dependence-foreign-oil.htm
The United States is the world's top producer of oil, but it still depends on foreign countries for millions of barrels, as well. Will there ever be a time when the U.S. is totally independent when it comes to oil production?
Why do humans walk on two legs?
animals.howstuffworks.com/mammals/bipedalism.htm
Bipedalism was one of the first features to develop in our human ancestors. Is bipedalism better than being on all fours? Read more about bipedalism.
Ultimate Guide to Green Building
home.howstuffworks.com/home-improvement/construction/green/green-building.htm
Green building is the practice of creating more resource-efficient methods of construction and renovation. Learn more about green building methods.
What will Earth look like in 5,000 years?
science.howstuffworks.com/environmental/earth/geology/earth-5000-years.htm
The Earth in 5,000 years would be a very different place because of climate change. Learn about the Earth in 5,000 years.
Can You Power Your Computer or TV With a Bicycle Generator?
science.howstuffworks.com/innovation/science-questions/question658.htm
How to power a TV with a bicycle is explained in this article. Find out if you can power a TV with a bicycle.
Can I own a plug-in hybrid if I live in an apartment?
auto.howstuffworks.com/car-models/plug-in-hybrids/own-plug-in-hybrid-apartment.htm
Can I own a plug-in hybrid if I live in an apartment? Read about whether plug-in hybrids are suitable for apartment dwellers at HowStuffWorks.
Small Appliance Basics
home.howstuffworks.com/small-appliance-basics-ga.htm
Coffee makers, vacuum cleaners, hair dyers -- you probably have one or all of these in your home? Learn about the differences between heating appliances, motor appliances, and combination appliances in this article.
What Is a Hybrid Car? Learn How Hybrid Vehicles Work
auto.howstuffworks.com/hybrid-car.htm
How does a hybrid car improve your gas mileage? And more importantly, does it pollute less just because it gets better gas mileage? Learn how hybrids work, plus get tips on how to drive a hybrid car for maximum efficiency.
What are green communities?
home.howstuffworks.com/home-improvement/construction/green/green-communities.htm
Green communities do everything they can to limit their footprint on the environment. Find out what you can do to make green communities.