Scientists amplify mineral's CO2-storing ability
August 15, 2018, 2:32 p.m. by Noel Kirkpatrick
By speeding up magnesite's natural process, they may have opened the door for a large-scale climate change solution.
Why do rivers need riverkeepers?
May 24, 2018, 8:17 a.m. by Russell McLendon
When the government fails to protect a public resource like a river, our hopes often fall to a loose coalition of citizen conservationists.
Explorers discover massive cave system under Montreal
December 4, 2017, 5:04 p.m. by Mary Jo DiLonardo
The passages are lined with stalagmites and stalactites.
Volunteers help bring life back to Grand Canyon springs
November 13, 2017, 1:30 p.m. by Michael d'Estries
The Grand Canyon Trust is spearheading efforts to restore watering holes critical to desert species.
The world is running out of sand
November 2, 2017, 5:04 a.m. by Bryan Nelson
Sand and gravel are the most commonly extracted resources worldwide.
Everyone wants to help rebuild Columbia River Gorge (but it's not time yet)
September 14, 2017, 7:53 a.m. by Mary Jo DiLonardo
Volunteers are eager to get boots on the ground after wildfires devastated their natural treasure.
13 glittering, record-setting gems to ogle
April 5, 2017, 11:39 a.m. by Angela Nelson
From huge pink diamonds to glittering topaz to a giant pearl, these massive gemstones have fascinating histories.
'One Big Home' profiles America's obsession with supersized dwellings
March 7, 2017, 7:16 a.m. by Michael d'Estries
Carpenter Thomas Bena goes behind the scenes to explore the growing trend of 'trophy homes' and 'starter castles.'
Americans are quietly preserving 56 million acres of private land
December 20, 2016, 8:15 a.m. by Russell McLendon
U.S. landowners voluntarily protect more land (and water) than all national parks in the lower 48 states, a new census shows.
Standing Rock protesters celebrate as pipeline is halted
December 5, 2016, 12:15 p.m. by Mary Jo DiLonardo
Activists relish the victory, but many of them still aren't leaving.
The faces at Standing Rock represent many generations
November 23, 2016, 8:10 a.m. by Jaymi Heimbuch
Why people are protesting the Dakota Access Pipeline.
We're changing the way the world sounds
November 22, 2016, 6:42 a.m. by Starre Vartan
Noise impacts ecosystems in more ways than you might think.
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Fishermen discover massive skull and antlers from ancient 'Irish elk'
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This is why we need wildlife crossings
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The 7 natural wonders of the world
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When will fall leaves be at their peak near me?
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Many veterinarians have ethical qualms about what some pet owners ask them to do
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Your sense of direction is intrinsically linked to your sense of smell
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Your 2018 fall foliage guide
Now you know the best time to be a 'leaf peeper' in any part of the U.S.
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Why do leaves change color in autumn?
Learn about the natural mechanisms that produce breathtaking fall foliage each year.
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Test your fall knowledge
The days are getting shorter and pumpkin spice seems to be everywhere: It must be fall.
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10 best places outside the U.S. for fall color
These places around the world that equal U.S. locales when it comes to colorful scenery.
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5 classic fall recipes
Roasted veggies and soups of all kinds are what we're talking about.
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