Physicist Dr. Denis Rancourt, a former professor and environmental science researcher at the University of Ottawa, has officially bailed out of the man-made global warming movement, calling it a ‘corrupt social phenomenon’.
He writes this in an essay on science trust issues plus adds this powerful closing passage about climate science:
And there is a thorough critique of the science as band wagon trumpeting and interested self-deception . Climategate only confirms what should be obvious to any practicing scientist: That science is a mafia when it’s not simply a sleeping pill.
Now he thinks that fossil fuel burning isn’t a problem of significance based on the scale. Excerpts below.
by Denis G. Rancourt
This essay was first posted on the Activist Teacher blog.
After all, the Earth is a planet. Is even the presence of humans significant on the rough and diverse thin surface of this planet?
We certainly make every effort to see ourselves as significant on this spinning ball in space. We like to point out that the lights from our cities can be seen from our extra-atmospheric “spaceships” at night and that we have deforested continents and reduced the populations of large wild mammals and of fishes but is all this really significant in the planetary web known as the biosphere?
INSIGNIFICANCE OF FOSSIL FUEL BURNING ENERGY RELEASE
The present (2010) historic maximum of anthropogenic (caused by humans) fossil fuel burning is only 8% or so of global primary production (GPP) (both expressed as kilograms of carbon per year, kg-C/y). GPP is the rate at which new biomass (living matter) is produced on the whole planet. And of course all biomass can in principle be considered fuel that could be burned with oxygen (O2) to produce CO2 gas, H2O water, energy, and an ash residue.
This shows the extent to which anthropogenic energy production from fossil fuel burning is small in comparison to the sun’s energy delivery to Earth, since biomass primary production results from the sun’s energy via photosynthesis.
In summary, the total amount of post-industrial fossil fuel burned to date (and expressed as kilograms of carbon) represents less than 1% of the global bio-available carbon pools.
More importantly, bio-available carbon is a minor constituent of the Earth’s surface environment and one that is readily buffered and exchanged between compartments without significant consequences to the diversity and quantity of life on the planet. The known history of life on Earth (over the last billions of years) is unambiguous on this point.
This ocean acidification side show on the global warming science bandwagon, involving major nation research centers and international collaborations, is interesting to compare with the 1970s-1980s hoax of boreal forest lake acidification. 
More importantly, scientists know virtually nothing about the dynamic carbon exchange fluxes that occur on all the relevant time and lengths scales to say anything definitive about how atmospheric CO2 arises and is exchanged in interaction with the planet’s ecological systems. We are barely at the point of being able to ask intelligent questions.
For left progressives to collaborate with First World governments that practice global extortion and geopolitical wars in order to pass carbon schemes to undemocratically manage and control the developments of non-First-World communities and sovereign states is obscene, racist, and cruelly cynical.
Here’s a video interview: