Is an imperfect climate bill (Waxman-Markey) better than no bill at all? Al Gore says yes.To bring environment supporters together, Gore will host a nationwide conference call on June 23 at 8 p.m. ET. The purpose, according to his Repower America e-mail sent to a selected audience, is “to build urgency around this bill and make sure it passes. We have to go to the grassroots – we have to continue building support in communities across the nation.”“As this climate legislation moves before the full Congress this summer, we have an opportunity unlike anything we’ve seen yet,” the e-mail concludes.Gore...