In 2008, at the age of 79, the retired physicist announced in a panel discussion that he was a climate change skeptic, although he had no research experience in climate change. He was receiving funding at the time by Phillip Morris and Big Tobacco.
This particular canard is pretty old and has been debunked many times, you should try harder. Maybe google for two minutes instead of one? But in any case Ivar Giaever is a terrible person, no doubt about it. As a knowledgeable person put it:
Dr. Giaever attended a school insulated with asbestos, then went on to drive a Chevy product. It is well known that the 1962 Chevy Corvair was associated with many deaths.
Also, in 1973 Dr. Giaever kept an ashtray on his desk, which clearly links him with Big Tobacco.
In 1984 Dr. Giaever received two windshield wiper blades from his local Shell station upon redeeming points, which clearly demonstrates he received something from Big Oil.
Dr. Giaever often saw former President Ronald Reagan on television, and of course Reagan was on the right. Thus Dr. Giaever is highly influenced by right-wing idealism.
I’m not saying Dr. Giaever is a bad person, but I would be very careful leaving puppies or small children near him or his family.