Is it possible to prove that the world is warming up using a single chart or graph showing the increase in average global temperature over recorded history? - TL Winslow, World's #1 climate scientist, amateur by choice.

https://www.quora.com/Is-it-possible-to-prove-that-the-world-is-warming-up-using-a-single-chart-or-graph-showing-the-increase-in-average-global-temperature-over-recorded-history/answer/TL-Winslow