share How a Malawi teen used junk to put wind to work Technology doesn’t always come from experts with expensive equipment. William Kamkwamba’s junkyard windmill proves it. Read more »
share Diverting garbage to a recycling plant leaves out a key player: dump dwellers Does your old lunch bag go in the garbage or the recycle bin? For hundreds of thousands of garbage scavengers worldwide who make a meager living by collecting, recycling and reselling trash, that decision is worth its weight in cash. Read more »
