The modern technologist is less 'sorcerer' and more 'sorcerer's apprentice'.
All of the clean technologies are known, it's a question of simply applying them.
The proper use of science is not to conquer nature but to live in it.
The age of innocent faith in science and technology may be over.
It is simply economically impossible to require controls that even approach zero emissions.
Finally, since human beings are uniquely capable of producing materials not found in nature, environmental degradation may be due to the resultant intrusion into an ecosystem of a substance wholly foreign to it.