Green: Then & Now

April 22nd, 2011

We are reminded on this Earth Day that few  issues we face are as pressing and our changing environment and our sources and uses of energy. But what we may not know, is that behind all of our current efforts to reduce our impact on the planet, there is a 150 year history of green innovation and progress that is overlooked and has hit so many roadblocks along the way. Alexis Madrigal, senior editor and technology reporter for gives us some history and perspective in Powering the Dream: The History and Promise of Green Technology My conversation with Alexis Madrigal:

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