Our Most Popular Content

The Top Ten Cool Schools
The colleges at the top of our annual "Cool Schools" ranking are so dedicated to greening every level of their operation--from energy usage to recycling to food sourcing to curriculum--that sustainability has become woven into their very culture.
Eco-Friendly Sunscreens
Green Life
Friday, May 30, 2014
Which sunscreen will you choose for you summer adventures?
Niagara Falls
Green Life
Wednesday, July 16, 2014
These daring videos shot by drones go where no human could go alone.
cool schools full ranking
Cool Schools 2014
Friday, August 8, 2014
Our Cool Schools 2014 scorecard
Eco-brews are helping the planet, pint by pint
Taste Test
Thursday, July 24, 2014
The perfect excuse to have a beer: Eco-brews are helping the planet, pint by pint.
Foraging dandelions
Enjoy
Wednesday, October 1, 2014
Who needs the agricultural-industrial complex when you can gather free food close to home?
First ascent of Virgin Tower, Enshi Grand Canyon National Park, China
Feature
Thursday, October 2, 2014
Can psychologists chart what happens when nature blows your mind?
Thomas James
Feature
Monday, March 31, 2014
Fearing lost profits, the nation's investor-owned utilities are moving to blot out the solar revolution.
Ask Mr. Green
Green Life
Monday, July 7, 2014
What is the environmental impact of office paper use? Mr. Green finds out!
TerraHaus passive dorm, Unity College
Comfort Zone
Monday, July 28, 2014
A Maine dorm where mini-fridges aren't allowed and a single hairdryer can heat the place in winter.
Corals, sponges, and anenomes appear static but are actually in constant motion.
Green Life
Wednesday, October 15, 2014
Time-lapse photography reveals corals as vicious predators, Bay Area fog as a rapid river, and so much more.
The Green Life
The experts weight in on the technique of these rock climbing bears.
Tunnel 2 Paradise | North Shore, Oahu
Deep inside some of the world's most dangerous waves.
Michael Swaine
Act
Wednesday, June 4, 2014
Around 12 years ago, a friend and I were walking by an abandoned alley in San Francisco, and she asked, 'If you could do anything with this space, what would you do?
7 of the planet's most incredible spectacles
Innovate
Innovate
Friday, April 4, 2014
Potty smackdown
Mr. Green
The Green Life
Does energy efficiency outweigh the energy needed to make the appliance?
Prius
Feature
Tuesday, June 3, 2014
Hybrid, plug-in hybrid, or battery electric: Here's what's good, better, and best for the environment when it comes to cars.
TRANSPORTATION TO THE MARCHQuestions about transportation? Contact us: climate.caravan@sierraclub.orgOr, click here to find buses near you. 
Misty Copeland
Artifact
Tuesday, June 3, 2014
Misty Copeland is the third African American female soloist in the New York's American Ballet Theatre 74-year history -- and the first in 20 years.
Survive: Snake Bite
Survive
Wednesday, June 4, 2014
Miles from help and you're bitten by a snake. Now what?
A detail of Pam Longobardi's 20-foot-long Economies  of Scale (2013), made from plastic debris the artist found  in oceans from Greece to Alaska.
Cool Schools 2014
Friday, July 25, 2014
Art students and professors have lit fires under the civil rights and antiwar movements. Can they do the same for environmentalism?
Green Life
Friday, May 30, 2014
Great views of the moon are in store for June.
Cool Schools 2014
Thursday, July 31, 2014
How we tallied our Cool Schools scores.
Ending Energy Poverty
 400 million people in India lack access to electricity. In Uttar Pradesh, India's most populous state, solar is helping rural people get light and other energy services. 
You don't have to be a pro to take a great Wilderness photo. It's all about timing--and gumption
Check out stunning photos taken by amateurs and learn how they got the winning shot.
August Stargazing
Green Life
Monday, July 28, 2014
You won't want to miss August's astronomy highlights.
Repurpose: Computer Cable Coasters
Repurpose
Wednesday, May 28, 2014
It's time to turn that tangle nest of outdated power cords into a handy coaster.
Trason
Green Life
Sunday, July 14, 2013
A running legend on what it takes to fuel up the right way.
Outdoor Blogs to Bookmark
Green Life
Tuesday, June 3, 2014
Follow these 5 blogs to stay up-to-date with all the viral news from the outdoor community.
The carcass of the abandoned Moran Municipal Generation Station, on Burlington's lakefront, inspired Tad Cooke (left) and Erick Crockenberg. Their charge: Turn the cavernous interior into an "innovation space."
Cool Schools 2014
Monday, August 25, 2014
Two college students are turning a coal-era relic into a cultural center.
Tiny stop-motion John Muir admiring a tree trunk
Green Life
Tuesday, June 24, 2014
Ian Timothy spent a year making this tiny John Muir come to life in a stop-motion short.

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