You said: "Climate deniers have 'healthy skepticism', but they never present any sane evidence for what they say. They just harp on about their belief, and ridicule scientists, political correctness, communists, etc.
Ian Plimer, a geologist, in Australia, wrote a climate denier book, and in it, he said that undersea volcanoes caused all the increase in CO2. So, what was the rest of the book about? About denying that anthropogenic carbon was a threat, after saying it came from volcanoes."
Is it argument from increduality to point that temperatures have been decreasing since 1998 while carbon levels in the atmosphere has been the same or increasing?
It is unfair to point out that back during the industrial revolution carbon dioxide increased exponentionally yet there was a global cooling phase that Time magazine and other media blew up into a big deal like they do global warming today?
The climate is too complex to be the function of one variable as Climate fearmongers argue. The weather where I live is the exact same as it was when I was growing up.