is a nuclear power generation is a bigger danger to combustion of fossil fuel?

Answer 1

Perhaps to rephrase your question. Does it mean:

Is nuclear power safer than fossil fuel?

OR

Is fossil fuel in danger of being replaced by nuclear power?

There is a huge difference.

Answer 2

Are you kidding? Nuclear Power is so completely harmless, as long as the government is making sure plants run safely. The amount of reactive nuclear waste produced in the last 40 yrs is only enough to cover 1 football field 5 yards deep. There is literally no air polution, and as long as no one is stupid enough to dig up the waste (if they actually knew where it was), it is completely harmless.