Question: The iris hypothesis was proposed by an atmospheric physicist who was professor at what university?
Sentence (from "Fred Singer"): Singer trained as an atmospheric physicist and is known for his work in space research, atmospheric pollution, rocket and satellite technology, his questioning of the link between UV-B and melanoma rates, and that between CFCs and stratospheric ozone loss, his public downplaying of the health risks of passive smoking, and as an advocate for climate change denial.
Relevant evidence: No