's 11 Most Popular Stories of 2011's 11 Most Popular Stories of 2011

Every year, and our dozens of expert bloggers file hundreds and hundreds of stories. And each year, some of those stories gain traction beyond what we ever could have expected, drawing in tens of thousands of readers from around the world, and reverberating across the web.

While these are not necessarily our best or most in-depth articles (though some of them of course are among that list), nor are they the off-the-wall stories that tend to go viral (though again some of them are), these are stories with legs.

Without further ado, and in no particular order:

The Rise of Urban Farming and Other Varieties of Sustainable Ag
By Leanne Tobias
Sustainable agriculture comes in many forms. Urban farms, vertical farms and community supported agriculture are just a few of the ways to fulfill a common mission: bringing produce to areas dominated by pavement.


How a Futuristic Environmental Design Idea Became a Reality
By Jim Kor
What vehicle architecture is most appropriate for global markets in the 21st century? Come hear how one great idea for an idealistic car is becoming a commercialized reality that could change the future of automotive transport.



"Reimagining the World Was a Responsibility"
By Paul Hawken
A eulogy for Ray Anderson, delivered at his memorial in Atlanta.



Green Marketing Is Over. Let's Move On.
By Joel Makower
There's plenty of hard work to do on the journey from here to sustainability. Dilly-dallying with green marketing come-ons is a distraction. Here are five reasons we should declare defeat.



Sodexo's Meatless Mondays Give 'Where's the Beef' a New Meaning
By Marc Gunther
Sodexo, the food service giant, has rolled out a program called -- gasp! -- Meatless Mondays to about 3,000 corporate cafeterias and hospitals across America.


What's the Greenest Way to Dry Your Hands?
By Leslie Guevarra
It's a question that bedevils facility managers. Dyson commissioned a study by the Massachusetts Institute of Technology to look into the matter -- and Kimberly-Clark Professional is raising a question of its own about the report.


Would You Buy a $40 Light Bulb?
By Marc Gunther
Philips Lighting's LED replacement for 60-watt incandescent bulbs has become the first to qualify for an Energy Star rating. With a list price of $39.97 at Home Depot it is considered an efficient and, quite possibly, a cost-effective alternative to the traditional bulb. Here's how the math pencils out.


IBM Tops List of World's Most Energy Efficient Supercomputers
By Leslie Guevarra
IBM dominates the Green500 Top 10 list of the most energy efficient high-performance computers in the world and claims the No. 1 spot for a second time in less than a year.



How Bill Gates Would Solve the Climate Crisis
By Debbie Van Der Hyde
At a breakfast in Seattle, the former chief of Microsoft and current global philanthropist talked about how to beat climate change, why nuclear is still an answer, and why we should still have hope that the worst can be averted.


UPS Boosts Mileage 40% with Prototype Plastic Delivery Vans
By Adam Aston
UPS engineers have lowered fuel consumption of deliver vans by about 40 percent with a prototype vehicle made from rugged, lightweight ABS plastic.



Viridian Design and Rethinking Our Relationship with 'Stuff'
By Marc Gunther
How much time, effort, money and brainspace do you devote to stuff -- buying it, taking care of it, thinking about it, arranging it, rearranging it, throwing it away, buying more, and so on? Bruce Sterling has a better way.