Extreme weather conditions are occurring with increasing frequency around the world, many of them blamed on disturbances to the atmosphere caused by global warming. But despite warnings from scientists, mankind seems unable to stem its insatiable appetite for energy -- particularly fossil fuels, which, according to experts, are producing the greenhouse gases blamed for global warming. Emissions are set to rise dramatically in the next few years as developing countries expand their economies. Given the predicament, is it time for the environmental movement to drop its opposition to nuclear power?