So, you’re the authority on global warming? Without a doubt, man is causing all this climate change? You must be part of the mythical 97% consensus crowd that gets so much attention.
According to NASA, in 1907 there was remarkable glacier shrinkage reported in Switzerland, among other places, and it had been going on for a few years. The thing is, in 1907, the earth was cooling (1907 is one of the coldest on record, apparently), CO2 levels were much lower than they are now, and the burning of fossil fuels was minimal compared to later in the 20th century.
Something is causing the glaciers to melt, but it ain’t man-made global warming.