Global-warming foes fighting the cures

If Al Gore is right and global warming is genuine, grave and the fault of mankind, why do he and so many environmentalists oppose measures that would reduce those pesky carbon-dioxide emissions? Power sources that could cut atmospheric CO2 rarely seem good enough to satisfy the greens.

Unlike oil and coal, nuclear power does not generate CO2. It may be the most practical, atmosphere-friendly power source now available. And yet the former vice president seems unimpressed.