Go and speak with people living around glaciers. ie. Argentina,Chile,Peru. Ask for 5 years old pictures. Compare with present and optionaly with your excel. ED

Go and speak with people living around glaciers. ie. Argentina,Chile,Peru. Ask for 5 years old pictures. Compare with present and optionaly with your excel. EDIT: some relevant photos http://www.peruviantimes.com/20/global-warming-impact-perus-pastoruri-glacier-recedes-into-two-patches-of-ice/70/2070/ http://www.peruviantimes.com/20/global-warming-impact-perus-...