From observation here in Maine, it is happening. Over the years, the date the lakes and rivers freeze up here happens later, and the day they thaw comes earlier. Average global mean temperature has also risen over the past few decades. The real debate is how much is natural and how much is man-made.--[[User:Dave3172|Dave3172]] 20:20, 11 March 2007 (EDT) | From observation here in Maine, it is happening. Over the years, the date the lakes and rivers freeze up here happens later, and the day they thaw comes earlier. Average global mean temperature has also risen over the past few decades. The real debate is how much is natural and how much is man-made.--[[User:Dave3172|Dave3172]] 20:20, 11 March 2007 (EDT) |