My guests today are T.A Barron, Andre Heinz and Jim Lyons. T.A Barron is the author of The great tree of Avalonand the five book epic The lost years of Merlin. He is challenging both presidential candidates to voice their views on a varitey of environmental issues. Andre Heinz (34) is the middleson of Teresa Heinz and the stepson of John Kerry. He has worked with Paul Hawken, Amory Lovins and The Natural Step in the "industrial ecology" movement. He explains the differences between George W Bush and John Kerry.