Is it "greener" to emit combustion products terrestrially or antimatter intergalactically? Why so?

Question

Fossil-fueled electric power plants emit combustion products terrestrially. Nuclear power plants emit anti-neutrinos that are not terrestrially bounded. Which is greener and why is that so?

Answer 1

Ask your little green friend from Andromeda.

edit:

No pun intended.

Answer 2

Antimatter intergalactically.  You should remember that anti-neutrinos are also produced during the decay of uranium, thorium  and other radioactive elements so really a reactor is merely a point source for anti-neutrinos activity that would occur naturally.  In other words, the distribution of the anti-neutrinos sees a spike in the area surrounding a reactor.  Reactor activity can see a slight increase in the rate of anti-neutrino activity but the amount of extra anti-neutrons is relatively small when compared to that emitted just in our solar system.  Intergalactically, the effect is almost infinitely small.  I suppose it's measureable at 10 to the billionth to the billionth parts (I'm just trying to convey a HUGE number there) but it's just not having a significant effect on things.  Anti-neutrinos are produced all the time and the number produced in nuclear plants is small.

Fossil-fueled plants emissions are less green as they act on a much smaller system (i.e. the earth)  so that they have the ability to effect much greater changes on the system.  Essentially we are seeing more emissions in a smaller system.

So overall:

Intergalactically:  small antineutrino emissions in big system

Terrestrially:  large combustion product emissions in small system.

Combustion emissions bad, anti-nuetrino emissions not so much.