Nike

It's much easier for environmentalists to take aim at multinational corporations than at peasant farmers.

• By Francie Diep

We canvassed the world of the social and behavioral sciences, looking for rising stars whose careers promise to make a lasting mark. We'll be profiling the top 30 throughout the month of April.

• By Avital Andrews

Keeping an eye on the (very profitable) ball.

• By Tom Jacobs