This week on GreenSense Radio we're talking about sustainability, a word often used and more often clearly misunderstood, eliciting nodding heads and blank stares. So this week, we're going to explore sustainability, from its origin to learning what you can do in your business and personal life that makes green sense. Join Host Robert Colangelo as he interviews our guests.

Doug Farr, CEO of Farr Associates, an award-wining architecture and urban planning firm and Author of Sustainable Urbanism: Urban Design With Nature. Doug will talk about what sustainability means, where the idea came from and why it's so important today. Doug will also share his ideas about designing "sustainable human environments" at the urban neighborhood level.

Alderman Manuel "Manny" Flores represents the 1st Ward in the City of Chicago. During his two terms, Flores has initiated sustainable development measures to address environmental protection and economic development in his ward and in the city. He'll talk about some of the Green initiatives in his community and give his thoughts on the future of sustainability in Chicago.

Andrew Winston, Winston Eco-Strategies and co-author of Green to Gold, the best-selling guide to what works - and what doesn't - when companies go Green. Andrew will reveal which five areas in business are ripe for quick paybacks from green thinking and how to use environmental thinking to survive the economic downturn.

Tim Taylor, CEO of Light Emitting Designs, LLC. He'll explain what a LED light is, what its benefits are and how his company is playing a part in the Retrofit Revolution.

In the limelight, William Walsh is the inventor of GreenBox - the sustainable Swiss Army Knife of pizza boxes. William will tell us how he came up with the idea and how his pizza box will radically change the way we consume pizza.