SCIENCE: Climate alarmism not justified by the evidence*

The purported 0.7ºC of average global warming over the past century is highly uncertain. It is in fact less than the margin of error in our ability to determine the average temperature anywhere, much less globally.
What portion of any such warming might be due to anthropogenic CO2 emissions is even less certain.
There are, however, numerous phenomena which are affected by temperature and which can provide good evidence of relative warming or cooling and, in some cases, even actual…

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