After being decimated by disease, pollution, and overharvesting, the Chesapeake Bay’s renowned oysters are thriving once again, thanks largely to a selectively bred oyster that grows rapidly and is more resistant to pathogens.
Democratic presidential candidate, former Secretary of State Hillary Rodham Clinton greets guests after speaking to South Carolina House Democratic Women's Caucus and Women's Council, Wednesday, in Columbia, S.C.
In a Nairobi, Kenya, slum, residents used technology to map the area, a key first step in solving problems from waste removal to street lighting. Those with phones can now report problems more accurately.
Environmentalist Ma Jun built a mobile phone app that lets users see whether a Chinese factory or power plant is violating pollution standards. His efforts won him a $1.25 million prize from the Skoll World Forum on Entrepreneurship.