RON BAILEY ON the split among environmentalists regarding nuclear power. “Environmentalists fiercely disagree about the role nuclear power might play in addressing global warming. Two new books by big names in the green movement stake out the boundaries of that debate. On the pro-nuclear side stands Stewart Brand with Whole Earth Discipline: An Ecopragmatist Manifesto. In the other corner you’ll find Al Gore with Our Choice: A Plan to Solve the Climate Crisis.”