Yes. I use logic and reasoning and order of magnitude estimation to think about environmental impact.
I also think people who obsess over polyethylene grocery bags are bad at math. Unfortunately, many of these people manage to influence public policy to my inconvenience. It is religion, not science.
I am sure there are some who claim the small amount of oil that went into the production of a grocery bag is a problem, but my impression in general was that they were being legislated away in many places because of littering, hazards to wildlife, etc., and not so much that they are wasteful of fossil fuels.
I also think people who obsess over polyethylene grocery bags are bad at math. Unfortunately, many of these people manage to influence public policy to my inconvenience. It is religion, not science.