Ivar Giaever is a retired professor formerly with the Rensselaer Polytechnic Institute's department of physics. In in 1973 Giaever shared the Nobel Prize for physic with Leo Esakis for their discovery of electron tunneling in superconductors; work Giaver had done while working with GE. He has also studied biophysics in Cambridge.  Currently, Giaever is the Chief Technology Officer of the company Applied BioPhysics Inc.
Giaever emigrated to Canada in 1954 where he studied engineering with Canadian General Electric's Advanced Engineering Program. He then emigrated to the USA where he completing engineering courses with GE, and eventually joined the GE Research and Development center in 1958 at the same time he began his study of physics at Rensselaer Polytechnic Institute where he obtained his Ph.D. in 1964. 
In addition to the Nobel Prize, he has been awarded the Oliver E. Buckley Prize by the American Physical Society in 1965, and the Zworykin Award by the National Academy of Engineering in 1974. 
According to Rensselaer Polytechnic Institute, the University of Oslo, and Google Scholar, Ivar Giaever has not published any work in the area of climate science. Giaever's climate science resume is limited to serving on a climate change discussion panel at the 51st convention of Nobel laureates in physics, chemistry, physiology and medicine. At the convention, Giaever stated he is skeptical of the importance of the issue of global warming.
“Global warming has become a new religion.” 
Giaever is unsure if the global commitment to implement more energy efficient technology is a possibility. He cited the lack of action and change since the Kyoto agreement:
“I don't see much change in these years when we were supposed to have done something about this already. If we were really serious about this thing why don't we talk about nuclear power?” 
September 14, 2011
Giaever announced his resignation from the American Physical Society (APS) after disagreeing with their stance on climate change.
According to the APS,
“The evidence is incontrovertible: Global warming is occurring. If no mitigating actions are taken, significant disruptions in the Earth’s physical and ecological systems, social systems, security and human health are likely to occur. We must reduce emissions of greenhouse gases beginning now.” 
The advertisement criticizes President Obama's declaration that “few challenges facing America and the world are more urgent than combating climate change,” by saying “with all due respect Mr. President, that is not true.” 
According to ad, “there has been no net global warming for over a decade,” and the dangers of global warming are “grossly overstated.”
The Cato Institute has received $125,000 from ExxonMobil since 1998, and lists Phillip Morris as one of its “national allies.” They have also received undisclosed amounts of funding from the American Petroleum Institute (API) and Koch Family Foundations.
Giaever served on the climate change discussion panel at the 51st convention of Nobel laureates in physics, chemistry, physiology and medicine.
The panel discussed solutions to climate change by using technologies such as nuclear energy, solar power, and photovoltaic cells.
Gaiver was described as “the panel’s self-proclaimed 'skeptic' in regard to the importance of global warming,” and he questioned the likelihood of obtaining such a feat. Since the Kyoto agreement, 'I don’t see much change in these years when we were supposed to have done something about this already,' he said. 'If we are really worried about this thing why don’t we talk about nuclear power?'
According to Rensselaer Polytechnical Institute, the University of Oslo and Google Scholar, Dr. Giaever has not published any work in the area of climate science.
“Ivar Giaever - Biography,” Nobelprize.org. Accessed Feb 2, 2012.
“Nobel Prize Winner for Physics Declares Himself Dissenter.” EPW Blog, July 2, 2008.
“Nobelists talk energy,” Climate Feedback, July 15, 2008.
“National Policy: 07.1 CLIMATECHANGE,” APS Physics. Accessed December 14, 2011.
“Heartland Experts: Ivar Giaever,” Accessed December 14, 2011.
“Climate Change Reality,” The Cato Institute.
“Press Release: The 1973 Nobel Prize in Physics,” Nobelprize.org.” Archived with WebCite, June 27, 2011.
“Ivar Giaever,” Profile at the Physics Department of Rensselaer Polytechnic Institute. Accessed January, 2012.
Marc Morano. “Exclusive: Nobel Prize-Winning Physicist Who Endorsed Obama Dissents! Resigns from American Physical Society Over Group's Promotion of Man-Made Global Warming,” Climate Depot, September 14, 2011.