H hills5 Senior Nov 2, 2005 5,880 33 0 May 25, 2016 #1 Interesting visualization: http://www.climate-lab-book.ac.uk/files/2016/05/spiral_optimized.gif
RMHawk Ring of Honor Gold Member Aug 19, 2001 16,931 8,260 0 Sioux Falls, SD May 25, 2016 #2 This is premium content. Please subscribe to view.
