I am also mostly very skeptical about "scientific" opinions, especially from non-scientific sources or from sources with vested interests. That's not to say I disagree with all of them, sometimes I agree.
But to my way of thinking, I am NOT interested in pushing the environment to the limits and then stepping back from the edge of destruction. Humans already pollute way too much on all levels and we need to cut back dramatically. I am not satisfied that air quality is so good that we can cut back environmentally friendly restrictions; I am not satisfied that water quality is so good that we can ease up. Motor vehicles are still too dirty and inefficient.
It seems to me that if we move in a positive direction with these types of environmental issues, that's about the best we can do.
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