How to think about the environment. We can never avoid risk completely. It is impossible to prove that something does not exist. Risks can be measured and ranked. Pollution problems occur where rights are not defined and enforced.
Ownership leads to better stewardship.
Some environmental groups profit from false alarms. Don't react out of fear. Every recommendation meets the common-sense test of addressing a real problem in an efficient way. Regarding air pollution , the authors advocate tracing air pollution to its sources and then holding its producers responsible for the damage they cause. They also advocate using mobile automobile exhaust testing to find and penalize the owners of cars that pollute, and giving factory owners and managers greater flexibility in determining how best to reduce their emissions.