The inevitable collision between the scientific and public world

14 03 2010

Cover of the latest UNEP report

The scientific community prides itself in its ability to distinguish good from junk science thanks to a thorough and objective peer-review process. While this process has proved successful to foster scientific progress, it has been recently put to test when scientific issues became entangled with public policy debates. From the toxicity of chemicals like aspartame or tobacco in the 1980’s to the recent Climate Gate, more and more scientists get dragged into the public arena where brilliant or simply demagogic rhetoric trumps long and complex discussions about statistical significance. Scientists are ill-equipped to provide opinions when they are in reality accustomed to discuss about facts. As a result, you end in situations like Climate Change where both scientists and public leaders get frustrated at each other, leaving the door open for private and other interests to shape the debate in their favor.

A couple of months ago, MIT organized a conference with Richard Lindzen and other professors from the institution. Richard Lindzen is the A. P. Sloan Professor of Meteorology at MIT and one of the most famous voices against the climate change consensus. He is widely quoted in the conservative reports denying the existence of climate change. However, when one carefully listens to him, it becomes obvious that he does not deny the existence of man-induced climate change. He just argues that the data proving a anthropogenic climate change is not conclusive for lack of statistical significance. In a nutshell, he does not deny nor confirm climate change; he is indecise. During the same conference, Ronald Prinn, the TEPCO Professor of Atmospheric Science at MIT, strongly argued against Pr. Lindzen but finally acknowledged that the only difference between them relied on their different appreciation of the risk. Prinn summarized it well when he said: “My judgement of statistical significance for anthropogenic warming is very much dependent on my belief/fear that we don’t have another planet to go to.” Both were looking at the same data but saw different thing. Read the rest of this entry »