A little bit of added wind resistance adds up to a lot of fuel waste and carbon emissions.

The World Cup is starting: here's a football they won't be wanting.

Brazil is a sunny country, and the different venues that will host World Cup games are all fitted with solar arrays that have 5.4 MW of capacity. Still the World Cup is only pale green.

As part of our ongoing series about modern green living, Margaret and Katherine discuss how they think about making exercise as green and eco-friendly as possible.

The colorful watercraft is actually 28 different 3D-printed sections that have been bolted together.

A biologist from the University of Guelph says the lead pellets used by Olympic shooters pose are a source of pollution.

it's got rail links, bike racks, LEDs and waterless urinals.

It's brilliant pre-Olympics marketing that gets Russians in better shape while saving some money.

The US postal service is destroying the whole series because of safety concerns.

They are loud, smelly, polluting and dangerous. But they are so much fun.

Plastic is all around us. Zeale of Boulder, Colorado has found a way to made high-grade optical lenses out of plant-based materials. They are made from castor oil, that old bane of childhood.

Known on the court for his skills at shot-blocking and rebounding, former pro basketballer Clifford Ray's exceptionally long arms once saved an animal's life.

A new wearable sensor technology that measures things like stance and force for sports also has the potential to harvest energy from waves, machinery or human movement.

I've definitely had a theme in the past few Fridays' Photos of the Day. And, if you guess that I'm jonesing for some time on snow, you're right.

Want to ski or snowboard terrain off the highest gondola in the world? Head to Kashmir.

In spring 2013 surfers will finally be able to buy a wetsuit made from a plant-based alternative to neoprene.

From a super chic air purifier (they do exist!) to eco-friendly running sandals, a gluten-free cookbook, and more, find the perfect gift for your health and wellness guru here.

Sustainable Surf's ECOBOARD certification program launches today in San Francisco.