This is The Escalator. If you live in a bubble world of rational discourse, it may seem an unnecessary demonstration of the obvious, but as you will have heard there are millions who do subscribe to petro-funded climate skepticdenial stories based on cherry-picked short-term trends (the blue lines). When you meet such a person, it would be an act of loving kindness towards them and all of us to take some time out to show him or her the graphs above, together with the explanation here (that, together with the follow-up posts also make a good tutorial in graphical data analysis). There’s a lot more good material at the same site: SkepticalScience.