The way I see it is that nuclear disasters are terrible and costly, but they don't threaten the existence of mankind or our way of life. Global warming, on the other hand, is threatening our way of life and well-being slowly but very directly. This is the real danger, and I believe that the green movement has been very misguided in its anti-nuclear stance. They are achieving the opposite of their goals. The carbon footprint of Germany has been much worse compared to France in the past 50 years.

We've had two major disasters in 30 years. Even if you assume that you get a Fukushima/Chernobyl-sized event three times per century, which is bad and should not happen with modern designs, it still doesn't threaten mankind as a whole because they are localized events. Global warming, however, is making Earth a less habitable place everywhere.