What's black and white and green all over? The 140-year-old factory that makes some of the world's finest pianos.
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The German automaker's long view of sustainability includes integrating renewable energy into production facilities and tapping vehicle-to-grid technologies.
Biotech company Novozymes has launched an energy-and-fuel company in Mozambique that makes ethanol from cassava for use as a cooking oil.
With just weeks to go, London is hustling to deliver on its pledge to make the 2012 Summer Games the greenest ever.