PCTC’s latest column in Pavement Maintenance & Reconstruction Magazine asks the question:
Why are politicians in local governments in places such as Highland Park, Illinois, and Ann Arbor, Michigan, and San Antonio, Texas, so concerned about PAHs and materials that contain PAHs?
Part of the answer is the precautionary principle reduced to the level of the personal lack of understanding and knowledge, resulting in personal uncertainty:
…the science is well established, but pro-ban advocates and the politicians acting on their advocacy don’t understand the science, creating high levels of personal uncertainty among non-experts. Combine that with a surprising willingness to act without evidence and, voila!, the precautionary principle is invoked.
Read the entire column here: