More Warming Shwarming

Under the category "We really have no clue" comes this bit of information:

Scheduled shifts in Earth's orbit should plunge the planet into an enduring Ice Age thousands of years from now but the event will probably be averted because of man-made greenhouse gases, scientists said Wednesday.

This is such folly. I mean, the idea is interesting, but how can we possibly know whether this will actually come to pass? It's worth asking the question.