As bad as the 9.0 Japanese earthquake is it harbors an even greater danger. One of the better ways to reduce greenhouse emissions is by using nuclear power. The problems Japan is having with the power plant near Sendai will definitely setback new nuclear power plants. The sad fact is that this plant was due to be shut-down in another 12 days before the quake hit.
Modern, 4th generation power plants are much safer (and smaller, less fuel), but it will be difficult to sell the public on that fact now.