Although it is good that they added riding bicycle lanes I doubt that is the only reason for the lowering of pollution.
Not only do we have electric and hybrid cars, due to euro standard combustion engines have become a lot cleaner during the same span of time. Plus public transport has also become a lot better during that time.
Although it is good that they added riding bicycle lanes I doubt that is the only reason for the lowering of pollution.
Not only do we have electric and hybrid cars, due to euro standard combustion engines have become a lot cleaner during the same span of time. Plus public transport has also become a lot better during that time.