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And that isn't "cherry picked."

We now have ultra sensitive instruments that can measure C02 and global temperatures that were not possible prior. There's no way to know if global temperatures beforehand didn't fluctuate 1°C over a few decades. In fact, basic logic tells us it's far more likely than not, just like we see now. And if increasing CO2 is causing the Earth to warm, it should be a consistently constant upward trend, but from 2002-2014 the Earth's temperature remained constant - impossible if CO2 causes the Earth to warm since there were increasing concentrations during that time. Twelve years is a long time for the Earth not to warm under this theory.

As for ice core samples, I read a paper (should have bookmarked it, now can't find it) where two researchers said it's not reliable due to degredation of the CO2 in the trapped air. Are they correct?

In any event, you can't say Richard Lindzen and Judith Curry don't know the science, and Martz was a believer in the man-made and catastrophic effects of global warming until he started looking into actual facts.