Giaever was one of President Obama’s key scientific supporters in 2008 when he joined over 70 Nobel Science Laureates in endorsing Obama in an October 29, 2008 open letter.

Giaever signed his name to the letter which read in part: “The country urgently needs a visionary leader…We are convinced that Senator Barack Obama is such a leader, and we urge you to join us in supporting him.” But seven years after signing the letter, Giaever now mocks President Obama for warning that “no challenge poses a greater threat to future generations than climate change”. (Watch Giaever’s full 30-minute July 1 speech here.) “How can he say that? [ “When you have a theory and the theory does not agree with the experiment then you have to cut out the theory.

() “The UN IPCC wisely avoided making the claim that 51% of a small change in temperature constitutes a problem.

They left this to the politicians and anyone who took the bait,” he said.

“To call carbon dioxide a pollutant is really Orwellian. “Coal, formed from ancient CO2, is a benefit to the world. We are simply returning CO2 to the atmosphere from which it came when you burn coal. Happer continued: “CO2 will be beneficial and crop yields will increase.” “More CO2 will be a very significant benefit to agriculture,” he added.

You are calling something a pollutant that we all produce. And it’s a good thing since it is at very low levels in the atmosphere. Happer then showed a picture of polluted air in China with the caption: “Real pollution in Shanghai.” “If you can see it, it’s not CO2,” Happer said. “We know for absolute certain that carbon dioxide is the stuff of life, the foundation for life on earth,” Moore said.

“I was horrified by what I found” after researching the issue in 2012, he noted.

: 'Demonization of CO2 is irrational at best and even modest warming is mostly beneficial.' - 'When someone says this is the warmest temperature on record. You are calling something a pollutant that we all produce. ' AUSTIN, Texas – A team of prominent scientists gathered in Texas today at a climate summit to declare that fears of man-made global warming were “irrational” and “based on nonsense” that “had nothing to do with science.” They warned that “we are being led down a false path” by the upcoming UN climate summit in Paris.

This is a very tiny change period.' : 'Policies to slow CO2 emissions are really based on nonsense. To call carbon dioxide a pollutant is really Orwellian.

The scientists appeared at a climate summit sponsored by the Texas Public Policy Foundation.

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Ivar Giaever: 'Global warming is a non-problem' 'I say this to Obama: Excuse me, Mr. Dead wrong.' 'Global warming really has become a new religion.' "I am worried very much about the [UN] conference in Paris in November...

Lindzen noted that National Academy of Sciences president Dr. Ralph Cicerone says ‘we don’t have that kind of evidence’ to claim we are ‘going to fry’ from AGW Lindzen also featured 2006 quotes from Scientist Dr.