What kind of advanced science degree do you have?
Once again, someone has asked me what my credentials are to argue about #TraceGasWarming theory. "What kind of advanced science degree do you have?" he asks. This is a question one gets from those who have no science degree and probably took few science classes. They take on faith whatever is said by "scientists," except when scientists run up against one of their prejudices, like GMOs or Roundup. This is the fallacy of arguing from authority, and I run into it also from spokespeople for the theory that trace gases are destroying our climate, when I challenge their science. The last one said that she believes what the climate scientists tell us, a common response. One of the most famous of these non-credentialed activists, Bill McKibben, told me, "Carbon dioxide is the difference between Venus and Mars!" That's a funny claim, considering that they both have around 96-97% CO2 in their atmospheres. Venus just happens to be a lot closer to the sun tha...