Nope you obviously have no idea
The only pollution that comes of a nuclear plant is warm water from the tanks and radiocative waste, which properly buried takes very little amounts of space...
Also if you look at amount of steel, concrete and everything else needed to make a wind or a solar plant and compare it with a nuclear power plant, it takes much more resources, and it would be almost impossible to have the whole world run on that power, and nuclear energy is much much cheaper than any other source of energy...
Not to mention how much more efficient things would get, and the possibilities that will appear when nuclear fusion is "discovered", they're builting a large reactor in Switzerland I think...
Švejk please read more about it, cause you obviously know very, very little about nuclear energy...