Yes, it is a matter of perspective; however, I live at about 15' ASL within 150 yards of the Pacific Ocean & have observed over 20 years no such changes here. I heard a radio commentator 2 days ago who has been living on a beach in The Bahamas for the past 51 winters. His observations, although not scientific, are the same as mine. Nothing has appreciably changed in his little part of the world.

Back to the chart, I wish that someone could explain the 8 red humps above the norm 15C when humans were few & far between. Just using common sense & reasoning, I'd say that it is normal warming cycling followed each time shown by blue dips of cooler periods.

Now if that chart is wrong (perhaps as accurate as the infamous hockey stick chart), then maybe I'm full of crap & so are those who authored it; however, it won't alter my beliefs, ha!

TAM