“Beyond our normal twenty-year outlook period, we recently attempted a forecast of the CO2 [carbon dioxide] build-up. We assumed different growth rates at different times, but with an average growth rate in fossil fuel use of about one percent per year starting today, our estimate is that the doubling of atmospheric CO2 levels might occur sometime late in the 21st century. That includes the impact of a synfuels industry. Assuming the greenhouse effect occurs, rising CO2 concentrations may begin to induce climactic changes around the middle of the 21st century.”

— Edward E. David Jr.

Keynote address at the Lamont–Doherty Earth Observatory on the Palisades, New York campus of Columbia University (October 26, 1982) ( Inventing the Future: Energy and the CO2 "Greenhouse Effect", October 26, 1982, December 22, 2018, Exxon, w:Edward E. David Jr., Edward E., David Jr. http://www.climatefiles.com/exxonmobil/inventing-future-energy-co2-greenhouse-effect/,)

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Edward E. David Jr. 1

American engineer 1925–2017

Ian Plimer book Heaven and Earth

Heaven and Earth (2009)

“The hypothesis that human emissions of CO2 can create global warming can be tested by measurement. … No warming has occured since 1998. … During that time atmospheric CO2 has increased. … The test of the hypothesis above shows that there is no relationship between measured temperature and CO2 emissions. The hypothesis fails.”

Ian Plimer book Heaven and Earth

Heaven and Earth (2009)

“I'm betting on the sun's increased activity in the last century, and that CO2 doesn't matter much because its effect is overwhelmed by everything else in our atmosphere that also acts as a greenhouse gas, mostly water vapor.”

Anthony Watts (1958) American television meteorologist

The Chico Beat http://www.norcalblogs.com/bullfight/2006/08/05/new-newspaper/, norcalblogs.com, August 5, 2006.
2006

“CO2 is far from being the biggest greenhouse gas. Chloroflourocarbons (CFC's) commonly used as refrigerants [are] far worse. Of naturally created GHG's, Methane is 23 times more effective at warming the atmosphere than CO2. Nitrous Oxide is even worse at 296. So far no emergency legislation has been authored to eliminate the effect of cows or dental surgeons.”

Anthony Watts (1958) American television meteorologist

Anthropogenic Warming? http://web.archive.org/web/20070304183056/http://www.norcalblogs.com/post_scripts/archives/2006/10/anthropogenic_w_1.html#comments, norcalblogs.com, 22 October, 2006.
Other

“It will take more time for the change we have to effect, but we don't have more time. The carbon dioxide on Earth, just in the last four years, has increased from.03 percent to.04 percent. And the change will have a significant impact on everyone.”

Bill Nye (1955) American science educator, comedian, television host, actor, writer, scientist and former mechanical engineer

[NewsBank, Nye: We must all save the Earth, The Madison Courier, Madison, Indiana, February 21, 2009, Pat Whitney]

“Carbon dioxide has never entered the atmosphere so fast. In 1976 the carbon dioxide level was at 0.03 percent. We've lived through a change to 0.04 percent.”

Bill Nye (1955) American science educator, comedian, television host, actor, writer, scientist and former mechanical engineer

[NewsBank, 'Science Guy' Visits Volcano, The Chronicle, Centralia, Washington, May 18, 2009, Paula Collucci]

“Ladies and gentlemen, I am to talk to you about energy in the future. I will start by telling you why I believe that the energy resources of the past must be supplemented. First of all, these energy resources will run short as we use more and more of the fossil fuels. But I would […] like to mention another reason why we probably have to look for additional fuel supplies. And this, strangely, is the question of contaminating the atmosphere. […. ] Whenever you burn conventional fuel, you create carbon dioxide. […. ] The carbon dioxide is invisible, it is transparent, you can’t smell it, it is not dangerous to health, so why should one worry about it?
Carbon dioxide has a strange property. It transmits visible light but it absorbs the infrared radiation which is emitted from the earth. Its presence in the atmosphere causes a greenhouse effect […. ] It has been calculated that a temperature rise corresponding to a 10 per cent increase in carbon dioxide will be sufficient to melt the icecap and submerge New York. All the coastal cities would be covered, and since a considerable percentage of the human race lives in coastal regions, I think that this chemical contamination is more serious than most people tend to believe.”

Edward Teller (1908–2003) Hungarian-American nuclear physicist

As quoted in Benjamin Franta, "On its 100th birthday in 1959, Edward Teller warned the oil industry about global warming" https://www.theguardian.com/environment/climate-consensus-97-per-cent/2018/jan/01/on-its-hundredth-birthday-in-1959-edward-teller-warned-the-oil-industry-about-global-warming, The Guardian, 1 January 2018.

“For generations, we have assumed that the efforts of mankind would leave the fundamental equilibrium of the world's systems and atmosphere stable. But it is possible that with all these enormous changes (population, agricultural, use of fossil fuels) concentrated into such a short period of time, we have unwittingly begun a massive experiment with the system of this planet itself…the increase in the greenhouse gases…has led some to fear that we are creating a global heat trap which could lead to climatic instability.”

Margaret Thatcher (1925–2013) British stateswoman and politician

Speech to the Royal Society (27 September 1988) http://www.margaretthatcher.org/document/107346
Third term as Prime Minister

“Those individuals from the far left, and I'm talking about the Hollywood elitists and the United Nations and those individuals want us to believe it's because we are contributing CO2 to the atmosphere, that's causing global warming. It's all about money. I mean, what would happen to the Weather Channel's ratings if all the sudden people weren't scared anymore?”

James Inhofe (1934) American politician

Fox & Friends, quoted in [Fox Takes Fair And Balanced Look At Weather "War"...With One Side, Rachel Sklar, The Huffington Post, http://www.huffingtonpost.com/eat-the-press/2007/01/30/fox-takes-fair-and-balanc_e_40001.html]

“Right now alternative energy is still treated as a supplement rather than a substitute for fossil fuels within the energy industry as presently constituted. The rapid growth of alternative energy should not therefore be seen as a radical break with the domination of fossil fuels. That still needs to occur.”

John Bellamy Foster (1953) Sociology professor and Marxist writer

Interview with Left Voice, 2017

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