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Shoopdawoop993 t1_izswfgk wrote

Reply to comment by marriedacarrot in [OC] Yearly Average Temperature in the UK, 1884 - 2021 by PieChartPirate

So yes, the earth was already warming before co2 concentrations rose? Looks like youre agreeing with me.

And what makes 320 the dividing line in that graph beyond looking nice

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marriedacarrot t1_iztvr5p wrote

Look at the graph again. CO2 (thick black line) is rising from the start of the graph.

320 ppm is used because that was the concentration in 1965 when scientists began reporting on this phenomenon more formally.

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