May, 2018: 411.31. Link here.
Look at that false precision: 411.31 parts per million
- 411.31/1,000,000 = 0.00041131 = 0. 04%
- now the change from last year to this year: 3.52 ppm = 000000352 = 0. 000352%
- but it's even worse: the precision is measured to 0.01 ppm = 0.001/1,000,000 = 0.00000001 = 0.000001%.
And to think that the increase caused that huge storm we had over DFW airport over the weekend.
See this link to see what "they" mean by "ppm."
400 ppm means 400 molecules for million molecules of gas in the earth's atmosphere. 0.01 ppm means 1 CO2 molecule for every 100 million molecules of gas in the earth's atmosphere.
There's no question we have instruments that are that sensitive (or is there?) but really, at any given moment ...