vtsnowedin wrote:When I look at what we know about the ice ages coming and going without any input from mankind over a half million years and the fact that the last retreat of the ice was just ten thousand years or so ago so can we be sure the current retreat is something we have caused or just nature finishing what it started ten thousand years ago?
Well there is a theory, backed by lots of evidence, that the Great Flood, described in numerous cultures and religions happened about 2,000 years before the last Ice age ended, around 10,000 years BC. Cause being Large meteor strikes into the two mile deep Northern Ice Cap, stretching from British Colombia to the European mainland Therefore no craters).
I don't see any reason why your proposal has to be an Either/Or one. Perhaps it is both? But I would bet it is slanted towards green house gases at the moment. Unfortunately with the current keynesian Economic System, which requires continual growth to function, I see no hope of fixing the problem. Instead we will enslave more people to serve the rich and politicians.
Peace