Twenty years ago, Richard Lindzen wrote a paper questioning whether CO2 could cause significant warming. In his conclusion, he stated::
“Indirect estimates, based on response to volcanos, suggest sensitivity may be as small as 0.3–0.5°C for a doubling of CO2, which is well within the range of natural variability.”
Of course, the paper has been largely ignored by bureaucratic scientists who prefer to alarm the public rather than accurately discuss science.
Who said, ‘just keep on keeping on,’?