1.) Twenty-one hybrid electric buses bring free public transit to Baltimore.
2.) Liquid diamond oceans are possible on Neptune and Uranus, scientists say.
3.) Genetically-modified Monsantos corn has been linked to organ failure.
4.) Will Americans come around on roundabouts?
5.) Urban planners around the world are saving dying cities with strategic reforestation.
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Editor
Andrew Nusca is editor of SmartPlanet and an associate editor for ZDNet. Previously, he worked at Money, Men's Vogue and Popular Mechanics magazines. He holds degrees from the Columbia University Graduate School of Journalism and New York University. He based in New York but resides in Philadelphia.
