Claim: The claim that 97 percent of scientists believe humans are causing climate change has been debunked by the "head" of the United Nations Intergovernmental Panel on Climate Change. "That number was pulled out of thin air."
Fact-check: Santorum: UN climate head debunked widely cited 97% climate change consensus figure
Verdict: false
Organisation: PolitiFact
Author: Linda Qiu
Date published: 2015-09-02T00:00:00