Our Most Popular Content

Ask Mr. Green
Green Life
Monday, October 27, 2014
Find out if you're spending too much money on hot showers.
Create
Wednesday, July 30, 2014
Clean energy—we have the will, and we have the way.
The weather had just cleared after monster storms in the Tetons. I went With some other experienced backcountry skiers To check conditions at a step couloir called Double Dog Leg. There'd been an avalanche nearby the day before, but on a different aspect.
Survive
Tuesday, October 7, 2014
The weather had just cleared after monster storms in the Tetons. I went with some other experienced backcountry skiers to check conditions at a steep couloir called Double Dog Leg. There'd been an avalanche nearby the day before, but on a different aspect. We decided to give it a try.
The Trans-Pacific Partnership is an expansive trade pact that the U.S. is negotiating with 11 other countries. It would empower corporations to challenge environmental policies in private trade tribunals, expand exports of natural gas and fracking across the U.S., and more.
Coming Clean
Long ago, the expression "carrying coal to Newcastle" meant to do something utterly pointless, because the city of Newcastle-on-Tyne had a monopoly on British coal exports. But soon, though, carrying coal to anywhere in the United Kingdom will be pointless.On February 14, the leaders of all three of the U.K.'s major political parties announced a joint commitment to phase out the use of coal and fight climate disruption.Specifically, here's what they agreed to do:
pavement
Next Big Thing
Monday, October 6, 2014
In the future, will pavement solve all our problems?
Birds possess an innate ability to build delicate nests from grass, twigs, or mud that regularly pass the most difficult test for any species: they cradle and protect the next generation.
Grass, twigs and mud that cradle the next generation.
Samuel Wohns, Cambridge, Mass.; co-coordinator, Responsible Investment at Harvard Coalition
Act
Monday, August 25, 2014
Sam Wohns tries to stop Harvard from funding eco-negative companies.
Green Life
Friday, February 6, 2015
The doughty Sierra Club founder rates Manhattan restaurants, always searching for his "spiritual beauty bread."
Eco-Gear for Winter Outings
Gear Guide
Friday, October 3, 2014
These trail-tested gadgets and garments will keep you cozy from hood to toe.
Lay of the Land
A coalition of organizations has developed a national campaign to save the Boundary Waters Canoe Area Wilderness from proposed copper-nickel, or sulfide, mining projects that would inject toxic waste into the pristine waters of the nation’s most visited wilderness.
The Green Life
Check out how this fashion trend could help out the earth.
Do Green Schools Matter?
Cool Schools 2013
Wednesday, September 11, 2013
Campuses are more focused on sustainability than ever. But what happens when students graduate?
Coconut Octopus
Critter
Thursday, December 4, 2014
To many, Amphioctopus marginatus looks like a mouthful of sashimi. To protect itself, it acts like an octopus. As one does.
Lay of the Land
A walk in the woods will change a child's life. That is, if she ever makes it to the trailhead. This week, President Obama unveiled the “Every Kid in a Park” initiative to connect children and their families with the great outdoors, ensuring millions of kids, regardless of where they live, will have an opportunity to take that first step in nature.
Surfing with dolphins
Explore
Monday, October 6, 2014
Daniel Duane's "cosmic" encounter while surfing with the dolphins off the San Francisco shore.
That Tree: A Year in the Life of a Lonely Oak
For 365 days, a photographer documented the life of a single bur oak. But the story doesn't end there.
What's a good holiday present?
Green Life
Thursday, December 11, 2014
This all-purpose holiday gifts saves energy, keeps you warm and cozy, and comes in a wide variety of lurid seasonal patterns.
Trash piles up in our world as well as in WALL-E's
Green Life
Monday, June 30, 2014
See which of your favorite eco-apocalypse movies are scientifically improbable--and which ones could really happen.
Mini Gardens
A peek at miniature gardening's wee and wonderful worlds.
High Art
How climbing photographers get the shots that make us gasp
The bicycle
Michael Embacher's collection of strange, sleek, and classic bikes.
Survive
Wednesday, July 30, 2014
What to do when marble-size hail and ice rain interrupt your bike ride.
Fibonacci Zoetrope
Green Life
Monday, February 9, 2015
One artist exposes the beauty in mathematics
Repurpose: Records to dessert stand
Repurpose
Friday, October 3, 2014
Here's how to turn your old vinyl records into a dessert stand hit.
CALCIFIED FISH EAGLE | LAKE NATRON, TANZANIA, 2012
Feature
Monday, March 3, 2014
In Africa, photographer Nick Brandt assembles an anti-poaching army.
Animal families
They're the creatures we love to love. But how well do we really know these beloved animals?
Ladybugs mating
Green Life
Tuesday, November 11, 2014
Sierra sat down with Jules Howard, author of new book Sex on Earth, for a totally serious conversation about animal sex.
Green Life
Friday, December 19, 2014
You know the scene in those science fiction movies when the gigantic starship passes overhead? It's kind of like that.
Underwater World
The cold, dark waters of the Pacific Northwest teem with otherworldly animals.
The Maze, Canyonlands National Park, Utah
Green Life
Thursday, April 11, 2013
Find out which six hikes are considered the most dangerous in America.
Plant, nurture, harvest, eat -- get to know your food before it becomes your food.
Feature
Thursday, February 19, 2015
The latter may feed millions, but there's nothing like knowing what went into your dinner.

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