"Sea levels have been rising steadily since the peak of the last Ice Age about 18,000 years ago. The total rise since then has been four hundred feet. For the last 5,000 years or so, the rate of rise has been about seven inches per century. The Medieval and Roman warmings, with their intervening cold periods, present a huge problem for the advocates of man-made global warming. If the Medieval and Roman occurred warmer than today - without greenhouse gases, what would be so unusual about modern times being warm as well? The temperatures at the North and South Poles are lower now than they were in 1930. The Antarctic Peninsula, the finger of land pointing north towards Argentina (and the equator) has been getting warmer. The other 97 percent of Antarctic has been cooling since the mid-1960s."