renewable energy


Bacteria Biofuel

Frances Arnold is a biochemical engineer at Cal Tech working on a part of the energy crisis. Her team is altering the genetic codes of bacteria to evolve organisms than can digest grass and excrete biofuel. She tells Kurt about "directed evolution."

Global Politics

Coney Island Sunshine

The New York subway system has one of the best environmental designs of recent years: Coney Island's Stillwell Avenue terminal is topped by a state-of-the-art photovoltaic glass roof. Kurt Andersen took the train to check it out with architect Greg Kiss.