With respect Ludwig, I think you need to do further research on the matter.Ludwig wrote: I don't see how you can persist in denying the evidence for MMGW on rational grounds.
Again, more research.....Ludwig wrote: the only arguments I hear against MMGW are "It's done nothing but rain this summer" and glib semantic tricks like "the sun is mostly responsible for the earth's climate".
Both of these have occured before in recent century's and were not the result of Anthropogenic GW. They were the result of natural climate change, which had nothing to do with increasing CO2 or even increasing CO2 caused by mankind.Ludwig wrote: Conversely, I've never heard any alternative explanation as to why the summer ice sheet is nearly gone and the vast majority of the world's glaciers are retreating.
A good starting point would be to read this link, where there is a letter from the President of the Royal Society, London, to the Admiralty, 20th November, 1817, detailing marked changes to the arctic ice coverage......
http://www.john-daly.com/polar/arctic.htm
I hope you find this instructive.