CHART: The "ups" and "downs" of climate change throughout history

"The ups and down of "global warming' and "global cooling." This is a great chart with author attribution on the bottom. Randy Mann is not to be confused with Michael Mann, cliamte alarmist in chief. Harris & Mann may be reviewed at: http://www.longrangeweather.com/about-us.htm

--Tomer D. Tamarkin, 1/4/17