[seifrob]

If I recall correctly, nuclear fusion gives so much byproduct heat that we would boil the Earth. With global warming that bad now, I am only glad we do not produce "cheap power for everyone".
There is nothing like "zero impact power". Even hydro can be bad (say "Three Gorges Dam").

I see it from the perspective of a densely populated country in central Europe, and see that nuclear is the least impacting form for mass production of electricity. wind is fine, solar is fine, hydro is fine, but you cannot make your country rely on that. Plus, more solar farms, less fields is the equation here.

As californiacivic said, the key is to consume less, to produce more effectively.