There is some questioning of the science underlying these types of regulations. I am sure no reasonable person believes them to be utterly cavalier -- we all must understand that the conclusions are based on research that is considered valid by the scientific discipline. However, what we must also recognize is that the details of the such science is almost surely too academic and too specialized in interest for its explanations to resonate with lay-folks like us, given only just a few words in a discussion forum. We have a choice, either to respect the folks who are experts in these things, because we used our best judgment, collectively, as a society, to put them in the position they're in, or we essentially castrate our own ability to foster a better society, by assuming that our society has no ability to place competent people in positions of authority.
This (environmental science) is not my expertise, but I would bet dollars-to-donuts that it is as specialized as my own expertise in business management, and I cannot tell you how often I encounter folks commenting about business management online who aren't interested in learning the science underlying the conclusions they object to, but at the same time are still unwilling to accept the conclusions of the overriding consensus of the experts. Instead, many of them choose to latch on to the nay-saying of the minority of the experts, not because they understand the science and what that minority is saying rings true, but rather because they like the conclusions of the nay-sayers.
Way too often, these days, people choose to put their own personal preferences and convenience over what's best for themselves and their descendants, long-term. We're an instant gratification-driven society, now, and the negative impact of that type of myopia is going to be something our children, and children's children, are going to be paying for.
