Let's assume it is the end of an ice age - and others are better positioned to advise whether it is or isn't - the fact remains that humans, and the plants and animals we rely upon to survive have evolved to survive in rather narrow climatic bands - and we all rely on cooler temperatures to keep disease in check. Whether it's a natural or man made change - we're in for nasty weather. As an aside when scientists talk of 2degree or 4degree rises in average temperatures that might mean 8 degrees at the equator and 2 degrees in Patagonia. It's similar for sea rise.
