Green Technology

Green technology is technology that produces clean energy, helps repair environmental damages or offers solutions to wasteful practices.

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When you get that gas or electric bill at the end of the month, you may swear off long, hot showers. But if your resolution always seems to cool after a few days, you might be a good candidate for a solar water heater.

By Julia Layton

Many of us take clean water for granted, but hundreds of millions of people have no access to it. Luckily, technologies like LifeStraw can help make water safer for individuals and families who desperately need it.

By Martha Barksdale & Kate Kershner

Gleaming from beneath the water's surface, you spy a large fish speckled with scales of sapphire. What could it be? Would you believe a pollution-sniffing robot?

By Robert Lamb

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Just look at any office printer for a pile of mistakes -- accidentally printed e-mails, multiple copies, practically blank pages. What are some tips (and tricks) for cutting back on your paper, ink and spending?

By Stephanie Watson

Bicycling has the potential to improve our environment, health and happiness in a big way. These five points will make you want to pump up your tires and get your bike rolling again.

By Julia Layton

What if you could make solar cells that were cheaper, smaller and more efficient? In theory, nano flakes could help you do that, if the technology ever gets off the ground.

By Jacob Silverman

Solar energy is abundant and infinitely renewable. Therefore, it's not surprising to see the proliferation of devices that rely on the sun -- especially solar aircraft.

By Susan L. Nasr

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While the typical home computer setup is a moderate power drain, the computer monitor accounts for nearly all of the system's energy consumption. What are five monitors that won't eat up so many watts?

By Julia Layton

In response to heavy criticism, the mobile phone industry has started going green. What are five of the greenest mobile phones out there?

By Julia Layton

There's nothing particularly organic about a robot, even if you dress it in hemp and fuel it with alternative energy. But these five can help our planet one mechanical movement at a time.

By Robert Lamb

If you live in the right spot -- somewhere that's sunny most of the year with low humidity -- you can save a lot through solar power. So which five cities are the best?

By Julia Layton

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So a space shuttle launch may not be the most environmentally friendly thing in the world, but there's more to NASA than space travel. What are five of the most important ways NASA helps the environment?

By Julia Layton

As part of managing your energy use, it's important to know how much electricity you're actually using, and your monthly electric bill may not tell the full story.

By Jacob Silverman

The world flushes up to 20 percent of its drinking water down various drains. That's a lot of water going to waste. Waterless toilets could squelch the squandering.

By Susan L. Nasr

Left unchecked, friction between the moving parts of an engine would turn it into an inert piece of sculpture. Clean, filtered oil keeps the parts moving with relatively little resistance.

By William Harris

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What if a single gallon of gas could cover your weekly commute? The Goblin Aero might take a little leg-power, but it'll get you where you need to go in relative comfort and safety.

By Julia Layton

Ever wish the lawn would just mow itself? Well, the Husqvarna Automower is about as close as you'll get to that dream -- with the added bonus of using the sun for power.

By Maria Trimarchi

A little friendly competition never hurts to stir up motivation, right? That's the idea behind Tweet-A-Watt, a power-monitoring gadget that connects your power usage to your Twitter account.

By Julia Layton

From toothbrushes to iPhones, we fill our lives with a seemingly unending string of gizmos -- all of which depend on electricity to give us what we need to make it through the day. What if you could generate that power?

By Robert Lamb

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The Duke Smart Home isn't your typical residence hall. It's a live-in laboratory, complete with LEED Platinum certification. What's inside (and out) that makes it so special?

By Maria Trimarchi

Sure, your hair dryer or toaster sucks up a lot of kilowatt-hours during the short time it's on, but what are the truly big drains on your home energy budget?

By Julia Layton

While rebates and tax credits have put solar power within reach for many homeowners, it's still an expensive undertaking. How do you make sure you get your money's worth?

By Julia Layton

A 10-minute shower can seem like nothing on a cold, sleepy morning, but it might cost you 50 gallons of water (or more). Is there a way to limit the volume of water you use?

By Julia Layton

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There are two main ways of generating energy from the sun. But one -- solar thermal technology -- is really poised to take off as a clean, reliable form of alternative energy.

By Maria Trimarchi

Did you ever make a potato clock as a kid? If so, you already understand the basic principles that make a soil lamp work.

By Julia Layton