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How Carbon Capture Works

science.howstuffworks.com/environmental/green-science/carbon-capture.htm

We know that humans are largely responsible for fueling global warming with our carbon emissions. So what if we could seize all that carbon and squirrel it away in a safe place? Well, we can. It's just hard and really expensive.

7 Secret Caves We'd Love to See Inside

science.howstuffworks.com/environmental/earth/geology/secret-caves.htm

There are caves all over the world, but some are in places that are hard to explore - hidden by rocks, ruins or even under ice. We've found seven secret caves you probably never knew existed.

The Ultimate Rock Climbing Quiz

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Rock climbing involves strength, control and finesse. There is an element of danger as well. If you are excited about scaling a vertical piece of stone, then take this quiz to learn more about rock climbing.

Smarter Than the Average American? Take This USA Quiz!

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Hundreds of millions of people live in the USA, but very few of them know all that much about the country they live in. Do you fit in that category, or do you think you're smarter than the average American? Take our quiz on all things America to find out.

How Cameras Work

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Cameras and photography have transformed how we see the world. Learn about cameras, photography, how 35mm cameras work and about making a homemade camera.

How Urban Planning Works

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Urban planning works to design a city so that it can be used effectively by its people. Find out more about how urban planning works.

Can You Match the Picture to Where in the World It Was Taken?

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We've gathered a picture collection just for you! Score big by matching the images that you see to the names of major destinations from around the globe. Lucky for you, you don't need a plane, train or boat ticket to make this fun trek. Take your picture journey now!

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