Pittsburgh's Phipps conservatory was once an icon of the last industrial revolution. Today the center boasts the most energy-efficient, tropical conservatory in the world, reports CNBC's Melissa Francis.
Ford Chairman Bill Ford Jr. and Gov. Jennifer Granholm, D-Mich., are set to announce plans to convert a closed plant into the nation's largest renewable energy park.
A Burger King franchise in New Jersey is harvesting renewable energy from an unusual source - the cars that visit its drive-thru. CNBC.com's Brooke Sopelsa has the story.
Companies are focusing on building sustainable businesses in a post-recession world, according to Adam Werbach, author of 'Strategy for Sustainability.' CNBC's Mike Huckman has the story.