Ah well the parent post was hidden and there was somebody talking about kooks. My error, sorry.
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Without measurements, I can say with certainty anything I want.
With measurements, I can only say with certainty what the measurements prove.
An Inconvenient Truth pointed out that warming can lead to cooling in some areas, as ocean currents change. Skeptics point out that urban density leads to localized warming. So whatever you've felt or noticed in your tiny area of the globe doesn't prove anything at all.
Also, that poster didn't refer to kooks or frauds at all. It was a statement of scientific skepticism. Skepticism is required for good science. What's bad for science is emotional people who are scared because they've used their ninth-grade notion of "science" to convince themselves of a conclusion that becomes "obvious" to them... even though they actually know jack shit.
As for me, I *know* I know jack shit and so I will wait for more data points.