Yes of course, the means you mentioned are practised alongside of the tax system here as well. Whatever works is fine. Many environment issues are just obvious and we can do something about it. Like some recent massive mud slides (China) are clearly the result of tree cutting and smogs in cities due to holy-cow car. Turn bikes into a serious means of transportation and you can breath fresher air and fight overweight all in one. Paris has car-freed the quais of the Seine. Everybody is delighted. Bikes are fine.

Yes, the butterfly is one of your Polyommatusses. They pass faithfully once a year when in the backyard the blackberries blossom.