Researchers have unearthed the wasteful habits of households and businesses in Nashville, Denver, and New York—and created a blueprint for curbing them.
Plus: GM tests self-driving cars in NYC, LA asks Uber for transit help, and Singapore says no more cars.
One of these sparks is not like the other.
Finally, a backpack designed to withstand the rigors of café racing.
Made by English company Amalgam, the miniature engine has over 1,000 parts—too bad none of them move.