I'm a Scientist. I'm apparently one of the "3%" that thinks CO2 produced by humans is not causing significant global warming.* I'll go further to say that in my opinion the Hansen Hypothesis has been proven to be wrong.
I am also 100 % in favor of the Paris Accord.
The truth is, and should anyone care to investigate they will easily prove this to be true, we are a long, long way from a consensus among meteorologists, climatologists, and atmospheric physicists. The ninety seven percent figure you keep seeing may be true if you include not just cosmologists but also cosmetologists in your survey.
I know ya'll are sick and tired of hearing this, but the media is no place to decide scientific questions. Physicist James Hansen could not get a consensus among his fellow scientists. Hansen resorted to hawking his hypothesis in the media and among politicians. If your eyebrows aren't raised by this, mine certainly are. Yes, he got lots of money for modeling studies. And yes, as long as a positive feedback mechanism is assumed, those early models can be programmed to predict rising temperatures if CO2 rises.
Unfortunately all the early models have been shown to be hugely defective. Furthermore there is now a mountain of evidence contradicting the Hansen hypothesis, i.e., "the Hansen guess". Probably Murray Salby, the well known atmospheric physicist, is correct, and it is temperature that is the independent variable and CO2 and likely methane too, are dependent variables. Water in its three physical states dominate all other substances when it comes to moderating the Earths surface temperature. The main sources of atmospheric heat are solar, geothermal and release of stored solar energy via combustion. It is possible that man's activities are affecting atmospheric heat, but it is not via CO2 emission which plays an extremely minor role. Carbon dioxide's major role is as a carbon source for plants.
I do not know if physicist, and former NASA Scientist, Ferenc Miskolczi's work has a fatal flaw. I'm not able to tell, but I admire his greatly simplified approach based on energy balance. NASA suppressed Miskolczi's paper because Miskolczi showed that feedback in the atmospheric temperature mechanism must be negative; not positive. This happens to be in agreement with my own view that I have stated here on ET, and of course retired MIT physicist-meteorologist Richard Lindzen** is of the same opinion. All positive feedback systems are inherently unstable.
Why did NASA suppress the publication of Miskolczi's paper under the NASA name? If it is wrong, let the reviewers be the judge, rather than a NASA administrator. In any case, the paper has now been peer reviewed and published. It is being subjected to fair and honest criticism. (There are not that many scientists capable of understanding Miskolczi's paper in fine detail. Papers like this typically take many months if not a few years to be thoroughly critiqued.)
To study something extremely complex and chaotic, such as the Earth's atmosphere, it might pay to take a step back, and rethink the entire problem. That's exactly what the brilliant John Maynard Keynes did when he was confronted with trying to understand the economy of a nation. He invented macroeconomics! This new approach to economics lifted the field out of the hopeless morass of microeconomics that Friedrich Hayek had found himself mired in. Perhaps Miskolczi is now leading us out of the global warming morass.
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*Please do not read anything other than what I have written. I am not stating a position on whether or not there is global warming caused by man's activity, or whether we are in a warming cycle or not.
**Last Febuary Lindzen sent a letter supported by a couple hundred scientist colleagues urging Trump to pull the U.S. out of the UN Climate Change Program. This got reported in the media as urging Trump to withdraw from the Paris Accord -- not exactly the same thing! I don't know Lindzen's view on the Accord. I know my view is we should support it fully. When it comes to politics scientists don't agree. When it comes to science they also don't agree. But there they have an infallible referee to decide whose right: Mother Nature!