@George Said
So we introduce a slight excelleration who cares, if we're destroying it chances are it's beyond repair and why spend the last few hundred years cold and without electricity?
Natural resources in terms of deriving electricity is very location orientated and the problem with that is you cant export and tranfer electricity from these source locations easily if you could then we'd have some kind of perpetual motion satalite in space.
We've accelerated it by more than a little. There was already a slow release of greenhouse gasses from volcanoes, forest fires etc. However we really sped things up. We're producing so much more carbon dioxide than these things ever could in conjunction with these natural processes. We've increased the speed fairly dramatically.
Also, I don't see what space power has to do with space satelites.
However I can say that Scotland gets a fairly large amount of our power from renewable energy sources and are looking to increase it very soon. I live quite a bit away from my nearest renewable energy power source but I know that a big chunk of what is used to power my laptop has been transported from these sources. Most of them are based on the same thing, the power is generated via turbine just as in a fossil fuel power plant but usually with more efficiency, the major exception being the solar panel which is extremely inefficient, or at least it was 4 years ago when we studied this in physics and tech studies.