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Your search for "carbon dioxide" returned 578 results
Siberia's Batagaika Crater Just Keeps Growing, and That's Not Good
science.howstuffworks.com/environmental/earth/geology/batagaika-crater.htm
It's known as the "Gateway to Hell" and while it might not actually get you there, what it will unleash if it keeps thawing could truly be hellish.
How Much Oxygen Does a Person Consume in a Day?
health.howstuffworks.com/human-body/systems/respiratory/question98.htm
How much oxygen does a person consume in a day?
When Is the Earth Going to End?
science.howstuffworks.com/environmental/earth/geology/earth-500-years.htm
The end of Earth will likely come about because of the sun in our solar system. This much you might already know, but we actually have an approximate date.
How Exhaust Heat Recovery and Recirculation Works
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/exhaust-heat-recovery-recirculation.htm
Exhaust heat recovery and recirculation technologies are made to maximize the efficiency of a vehicle's exhaust. Read about exhaust heat recovery on HowStuffWorks.
98% of adults can't pass this elementary school science quiz! Can you?
play.howstuffworks.com/quiz/98-adults-cant-pass-this-elementary-school-science-quiz-can-you
From the periodic table to inventors and their inventions, how well do you remember your science class lessons? Do you think you could pass general science? Let's find out with this quiz!
Top 10 Green Heating and Cooling Technologies
Compared to standard heating and air systems, going green is better for the environment -- and your wallet because they use less energy. So what kind of green HVAC systems are on the market today? Read on to find out.
How Fly Ash Concrete Works
home.howstuffworks.com/home-improvement/construction/materials/fly-ash-concrete.htm
Fly ash concrete is considered a green building product. Learn about the benefits and potential hazards of fly ash concrete.
What If Everyone in the World Recycled?
science.howstuffworks.com/science-vs-myth/what-if/what-if-everyone-in-world-recycled.htm
If you don't recycle, you should. If you do recycle, you should do more. And what if everybody in the world started to recycle? At the very least, it would help us attack that enormous plastic patch in the middle of the ocean.
Why Does Lettuce in a Bag Stay Fresh Longer Than a Head of Lettuce?
recipes.howstuffworks.com/question355.htm
Why does lettuce in a bag stay fresh longer than a head of lettuce? Check out this article to learn the answer and more.
Are cut flowers really bad for hospital rooms?
health.howstuffworks.com/mental-health/human-nature/health-myths/flowers-in-hospital.htm
Cut flowers are sometimes banned in hospitals for safety reasons. Find out whether there's any truth in the danger of bringing cut flowers into a hospita.