Environmental Science
The environment is truly a thing of beauty and should be protected whenever possible. What can we do to save the environment, and what new technology is available to help us?
The Euphrates River, at the 'Cradle of Civilization,' Is Drying Up
Study Says 2035 Is Climate Change Point of No Return
5 Ideas for Doubling the World's Food Supply
What's a Subduction Zone? Everyone in the Pacific NW Should Know
What Are the Biggest Lakes in the U.S.?
The Tallest Mountain in the U.S. and 7 Close Contenders
How a Lithium Mine Works and Impacts Local Communities
How to Sell Electricity Back to the Grid
Are there any risks associated with the production of wind energy?
The Worst Air Quality in the World Is in Mountainous Terrain
The World Hits 8 Billion People; Is That Good or Bad?
Quiz: Can You Tell Climate Change Fact From Fiction?
Top 5 Green Robots
5 Things to Consider When Building a Solar-powered Home
What Uses the Most Electricity in a Home?
Learn More / Page 20
The curves of the Serpent Mound, Ohio state's massive and mysterious geological wonder, line up with the sun during equinoxes and solstices.
The rose-red mineral rhodonite was first discovered in the 1790s in the Ural Mountains of Russia. Today it's found globally and is associated with compassion, love and healing.
Cinnabar's bright-red pigment has been used in jewelry, pottery and makeup for millennia. But cinnabar is also the primary ore for mercury, making it a dangerous mineral if the particles are inhaled.
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Few Americans like the switching between Daylight Saving Time and Standard Time, but there's conflict on whether to switch permanently to DST or to ST. What are the pros and cons of permanent DST?
Hair trimmings from salons and personal donations can be repurposed as mats that soak up oil spills and help protect the environment.
The element lithium is one of just three created during the Big Bang and has been used for mental health care for decades. But now it's in higher demand than ever before.
Does searching through the mud of a riverbank for treasures of old sound like a fun way to spend a day? If so, you may just be a true mudlarker at heart.
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Lakes seem like serene places to escape and enjoy peace and quiet. So you'd probably be surprised to learn that a lake can actually explode without warning. It's happened, with deadly consequences.
By Mark Mancini
A killer smog 70 years ago helped lead to the first federal air pollution laws.
But that doesn't mean they worshipped them.
By Dave Roos
Scientists are hoping two enzymes are the key to breaking down huge amounts of plastic.
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The oceans on planet Earth cycle through daily tidal changes. But the ground beneath our feet experiences tides of its own, too.
By Mark Mancini
Scientists have found that chemicals in some sunscreens can cause coral bleaching, prompting the Hawaii state legislature to propose an exhaustive ban on them.
Will a town in southern Missouri be the epicenter of the next 'big one'?
By Mark Mancini
Wouldn't it be nice if we could pull CO2 out of thin air and transform it into a fuel that's better for the environment?Now we can.
By Mark Mancini
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Ever wondered what's the difference between a river, a stream, a brook and a tributary?
By Amanda Onion
Getting your home to zero waste doesn't have to mean re-structuring your entire life. Sure, you'll have to make changes, but most of them are surprisingly easy.
By John Donovan
Ocean water is not actually blue, but appears in different shades for many reasons.
By Amanda Onion
The Sahara has expanded by about 10 percent in the past century, mostly due to natural causes, but not all. We can blame the rest on man-made climate change.
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Plastic may be the longest-lasting legacy of human beings on this planet. But there are lots of ways, big and small, that we can all stop using it. Today.
How, in today's world, could a cave this massive go undetected for so long?
Coral grows faster when it's cut or broken and scientists are taking advantage of that to replenish depleted reefs.
Prior to the mid-1990s, the magnetic north pole traveled at speeds of around 9 miles per year. Now, it's 34 miles annually. What accounts for the acceleration?
By Mark Mancini
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The pigment ultramarine was as expensive as gold in medieval Europe; so how did it end up in the teeth of a nun buried at a monastery in rural Germany?
What makes peat bogs so perfect at preserving human remains? We look at what's behind these waterlogged areas of decaying plant matter.