A wacky bike helmet that inflates on impact is just one of the cool concept bike helmets that could change the future of biking.
We also have gorgeous container gardens made from trash, crazy 'while biking' stories, the scary truth about the chemicals in sunscreen, tips on picking the best bike for you, and more in the Week in Pictures -- our roundup of the best images on TreeHugger this week..
Past Week in Pictures
The Week in Pictures: Dinosaur Planters, Oxygen Tank Dress, and More
The Week in Pictures: Potholes Fixed with Yarn, Stolen Bike Returned, and More