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Did climate change create a mysterious civilization 5,000 years ago?
science.howstuffworks.com/environmental/green-science/climate-change-civilization.htm
Climate change can effect civilization, a phenomenon demonstrated by the mound builders of Peru. Learn how climate change can effect civilization.
Arachnid Pictures
animals.howstuffworks.com/arachnids/arachnid-pictures.htm
Arachnids include spiders, mites, ticks, harvestmen, chiggers and scorpions. Learn more by viewing these arachnid pictures.
Why do cougars scream?
animals.howstuffworks.com/mammals/cougar-scream.htm
Cougars scream during mating season to attract the opposite sex. Learn how cougars scream and why humans don't hear these cougar screams too often.
How can adding iron to the oceans slow global warming?
science.howstuffworks.com/environmental/green-science/iron-sulfate-slow-global-warming.htm
Scientists propose adding iron to the oceans to cut carbon dioxide levels and, in turn, decrease temperatures. See if adding iron to the oceans works.
What's the best way to keep pests out of my home?
home.howstuffworks.com/home-improvement/repair/home-pest-control.htm
Home pest control isn't always chemical agents that exterminators spray -- there are green alternatives. Read about home pest control for your home.
Are redheads going extinct?
science.howstuffworks.com/life/genetic/redhead-extinction.htm
Redhead extinction is the idea that the recessive gene that causes red hair will eventually die out. Read about the theories behind redhead extinction.
10 Memorable Meteor Crashes
science.howstuffworks.com/10-memorable-meteor-crashes.htm
Hundred of meteors fly across the sky every night, but only a few make it to Earth. Learn about 10 memorable meteor crashes that left an impression.
High-risk Health Insurance Pools
health.howstuffworks.com/health-insurance/high-risk-health-insurance-pool.htm
High-risk health insurance pools are programs that are meant to provide health care to those what can't afford it. Learn about high-risk health insurance pools.
Low-sodium Diets
health.howstuffworks.com/wellness/preventive-care/low-sodium-diet.htm
Low-sodium diets seeks to reduce the level of sodium that the body intakes through food. Learn more about how low-sodium diets work in this article.
What if we covered a city in a giant glass dome?
science.howstuffworks.com/engineering/structural/covered-city.htm
Domed cities would provide the same temperature year-round, no rain or snow, and the ability to go outside without worrying about a sunburn. Have they been tried before, and what about the people who enjoy their seasons?