In Japan, Prius Hybrids can have an optional Vuvuzela so that people can hear it coming. A few years ago in the States, a bill was introduced to protect blind people and other pedestrians from the dangers posed by quiet cars. But others have noted that our cities are noisy enough already, or that it is not the pedestrian's job to get out of the way of cars, but the driver's job to avoid hitting them.
Get up close and personal with the natural world with these amazing photos.
Use this list to clean without spreading toxic chemicals around your home.
Don't miss the beer-can shingles on this DIY beauty that was built in a day
Photographer Daniel Beltrá's shocking visual journal of the disaster.
Modular design is a new wave in tech, making gadgets greener along the way.
From hermit crab shells to moon bases, 3D printing may remake the world.
Toast your grad's entry into the big wide world with durable, useful gifts.
