John Abraham and Dana Nuccitelli:
Many commenters have noted that the expert consensus is itself not scientific evidence for human-caused global warming. That’s true. The expert consensus is however based on the scientific evidence. The fact that 97 percent of climate experts agree on this subject also demonstrates the strength of the scientific evidence on human-caused global warming. And the strength of the evidence is why the IPCC is able to say with 95 percent confidence that humans are the main cause of the current global warming.