By Omar Romero-Hernandez, Tiger Li, Tanya Shiu and Jorge Zapata Barbara. Each year, the world’s human population generates well over 1 billion tons of solid waste, and that volume is on track to grow 70…
By Kristiana Raube Is it possible to marry the nimbleness and innovation of a social entrepreneur with the reach and experience of a big, established nonprofit institution? Can a seemingly traditional relief charity embrace cutting-edge…
By David I. Levine A successful salesman in Cambodia, let’s call him Mr. Bun, had a problem: The owner of his favorite noodle shop would not buy his fuel-efficient cookstove, even though the new stove…