How do you convince people to drive less? When a team of University of California-Berkeley students considered the problem in the city of Berkeley–where traffic is increasing despite the city’s reputation as a bastion of progressive politics–they focused on how to improve the experience of riding the bus.

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For 3 Billion People Cooking Can Be Deadly
Nearly half the people on Earth use inefficient fuel sources like wood or coal to cook their food. Every year three to four million people