Duke Energy CEO Jim Rogers, PSEG CEO Ralph Izzo and David Doniger of NRDC face off on the contentious issue of carbon auctions -- a key step in putting a carbon cap-and-trade system in place in the US. Moderated by David Gardiner of David Gardiner & Associates. Broadcast live from the annual Ceres conference in Boston, on Tuesday April 29, at 4:30 pm. For more information, see http://www.ceres.org