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What is a solar tower and how does it work?

Solar towers, a sun-powered renewable energy source, offer plenty of advantages.




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Why copper is so good at killing superbugs (and regular bacteria, too)

Copper is so effective, many experts think we should coat hospital beds, railings and other public furniture with an alloy of the metal.



  • Fitness & Well-Being

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8 creative techniques to keep coral reefs alive

Since the threats to coral reefs vary depending on location, scientists are customizing solutions to help them survive.




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The cost of tackling climate change is less than the cost of doing nothing

The economic cost of doing nothing to reduce greenhouse gases is higher than fighting the problem, study finds.



  • Climate & Weather

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A third of Americans believe in UFOs, but they aren't all looking for the same thing

A new book, "They Are Already Here" by Sarah Scoles, looks at the people who are obsessed with unidentified flying objects — but for different reasons.




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We're taking coronavirus seriously. What if we did that with climate change?

The similarities between coronavirus and climate change are many. It's just the time scale that's different.



  • Climate & Weather

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Doctors use Skype to see ER patients in small towns

Physicians sign on to video conferences to help people who need emergency services at understaffed rural hospitals




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Add some automation to your chicken coop

One way to make life a little easier is to focus first on the door of the coop. Here's how.



  • Gadgets & Electronics

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Slimy killer rock snot invades New York

Fast-spreading algae has spread quickly along crucial New York waterways that provide drinking water.



  • Wilderness & Resources

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Algae oil: I'll drink to that!

Breakthrough algae oil technology unveiled in Los Angeles! Sarah Backhouse was there and give you the scoop.



  • Research & Innovations

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Why is half of the Great Salt Lake pink?

The difference in color between the northern and southern halves of Utah's Great Salt Lake are clear as day. But what causes that pink hue?



  • Wilderness & Resources

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Massive eruption launched slimy algae army into the sky

The diatoms were launched by the Taupo super-eruption on New Zealand's North Island 25,000 years ago.



  • Wilderness & Resources

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Breakthrough process converts algae into crude oil in less than an hour

No more drilling? Being able to transform algae into crude oil could revolutionize how we fuel up our vehicles.




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What's causing Canada's 'rock snot' infestation?

A pesky species of algae is infiltrating parts of eastern Canada due to global warming



  • Wilderness & Resources

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Grow your own artistic creations with algae-powered ink pens

It's nontoxic, time-lapse ink that you see ... and then you don't see ... and then you see again.



  • Research & Innovations

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An ancient army of algae may have shaped life on Earth as we know it

We may owe our very existence to microscopic organisms that forever altered the food web.



  • Wilderness & Resources

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What you don't know about seaweed

You may not realize it, but seaweed is utterly essential to our world.



  • Wilderness & Resources

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Why this Ohio city just granted Lake Erie the same legal rights as humans

Ohio voters just passed the Lake Erie Bill of Rights, and it could help to save the pollution-choked Great Lake.



  • Wilderness & Resources

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10 reasons making music is good for your brain

Researchers are still discovering all the ways that making music enriches your brain, but the impact is undeniable.




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What is African black soap?

Made from locally harvested plants and barks, this gentle soap leaves skin feeling soft and smooth.



  • Natural Beauty & Fashion

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Green States: A geek bearing gifts

The Smiley family, from 1869 to the present, has run the Mohonk Mountain House, a gorgeous throwback of a resort hotel that I can no longer afford to visit abou



  • Climate & Weather

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Why cemeteries are a great place to track acid rain

To a geologist, a gravestone can offer information other rocks can't. One project is using gravestones to better understand how the elements, particularly acid



  • Climate & Weather

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Air pollution now a top 10 disease health risk

Air pollution from auto exhaust and other sources now poses one of the most serious health risks.




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Why you should take a bird's-eye view of the Great Barrier Reef

Follow NASA's lead and explore this natural wonder by air. Scientists working for NASA's CORAL project are embarking on a two-month aerial study.




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Why is the sky so blue in autumn?

Have you ever looked up on a crisp fall day and noticed how brilliant and clear the blue sky is? That's not just your imagination.



  • Climate & Weather

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Planning a wedding? Skip the flowers and get puppy bouquets instead

Add an extra dose of whimsy and bliss to your big day with a rambunctious pile of rescue puppies.




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Art festival blankets Fort Smith in rainbow paint and recycled junk

A two-week public arts event inundates a small city in Arkansas with an array of vibrant murals and installations.



  • Arts & Culture

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Pumpkin the raccoon thinks she's a dog

After being rescued as a baby, this little raccoon now lives a life of luxury in the Bahamas.




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Elusive ribbon seal makes a rare appearance in the lower 48

An arctic animal that typically spends its days lounging on pack ice came ashore on the southern coast of Washington this summer.




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Take a trip across Q'eswachaka, the last handwoven Inca rope bridge

​Stretching over the Apurimac River, this suspension bridge is made of grass and rebuilt every year using traditional Inca techniques.




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​How a caustic lake in Tanzania became a flamingo paradise

This salty soda lake literally turns dead animals into calcified statues. Why do lesser flamingos love it so much?



  • Wilderness & Resources

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Take a leap with these airborne pups

It's a bird! It's a plane! It's a flying dog!




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Lifelike, but not alive: These animal sculptures are crafted from newspaper

Old newspapers gain new life as evocative sculptures that tell a story about the relationship between humans and animals.



  • Arts & Culture

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Comical rescue kitties defy gravity in 'Pounce'

Photographer Seth Casteel casts his lens on the priceless expressions of rescue cats and kittens bounding and jumping through the air.




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After 25 years as a trash dump, San Cristobal Canyon bounces back

Following years of misuse, gorgeous canyon gains new life as one of Puerto Rico's most important ecological attractions.




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'Tron' meets mountain biking in trippy 'Light Cycles' video

Mountain bikers wind through the misty temperate rain forest of Whistler, British Columbia, leaving stunning long-exposure light trails in their wake.



  • Arts & Culture

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To save salamanders from killer fungus, scientists hit the ground running

Salamanders and newts in Europe are under siege by an invasive and deadly mycological disease. How can we stop it from reaching North America?




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Spirit of Henry David Thoreau's 'Walden' lives on at state park

Henry David Thoreau's beloved slice of nature still exists today in the form of a Walden Pond State Reservation.



  • Wilderness & Resources

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These newly discovered peacock spiders will change your mind about arachnids

Many people don't see arachnids as 'cute,' but maybe they've never laid eyes on a peacock jumping spider.




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Peek inside the brilliant world of New Zealand's cave-dwelling glowworms

These bioluminescent gnat larvae fool their prey by beautifully imitating the night sky inside of caves.




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10 irreplaceable World Heritage Sites that are on the brink

These endangered World Heritage Sites, both natural and cultural, could use a helping hand in restoring and preserving their integrity.




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Oh, Canada! 17 national parks that give this nation reason to boast

Here's a glance at the variation of landscape and geography found within just a few of Canada's most amazing national parks.




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15 of the most striking crater lakes on Earth

While a few of these natural wonders formed as a result of meteors raining down, many more were crafted by the hands of our own Mother Earth.



  • Wilderness & Resources

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Quokka selfies take the internet by storm (but not everyone thinks that's a good thing)

Due to their seemingly ever-smiling demeanor, these small marsupials are the perfect selfie buddies.




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How to make the most of the season's shortest days

With the Earth's axis now tilting at 23.5 degrees, the northern hemisphere is at its farthest point from the sun.




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Synchronized fireflies gather for a 'rave' in the Great Smoky Mountains

Every June, the Elkmont Ghost Town in Great Smoky Mountains National Park lights up with the world's largest gathering of synchronous fireflies.




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The story behind kudzu, the vine that's still eating the South

These leafy figures may be fascinating, but their comical appearance belies a sobering ecological reality.



  • Wilderness & Resources

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New Yorkers line up for 'Manhattanhenge'

Manhattanhenge is an urban phenomenon in which the sun sets perfectly along New York City's east-west street grid.



  • Arts & Culture

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What the heck is a tanuki? 8 things you didn't know about raccoon dogs

Native to East Asia, these frequently misrepresented animals are gentle creatures that serve as major icons in Japanese culture.




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Who needs fireworks when you have the stars?

Fireworks displays are nothing compared to the cosmic explosions and implosions that occur every moment across our universe.