Following the pack is not part of the scientific method. The point is to follow the evidence. And that leaves room for ambiguity in interpreting the survey results showing that 97 percent of climate scientists agree that global warming is real and that human-generated greenhouse gases are a major cause. The National Academy of Sciences, American Physical Society, American Chemical Society and other relevant scientific organizations all agree, too.
For some, this consensus proves that climate change is real and that humans must take immediate action against it. But others, citing history, say the consensus view has been wrong before. Why should we believe it now? For example, scientists once believe the earth was headed into an ice age. So why should we trust them when they say the globe is warming?
