[bayindirh]

> about 550 tons of airborne particles from tires are produced annually...

So busses, semis, trucks and other rubber tired vehicles are also a no go.

> tires and brake pads as the source of about 550,000 tons of ocean microplastic emissions annually.5 Oct 2020

This adds other wheeled vehicles which use friction based braking into the equation.

I intentionally exaggerate the tone of my comment, but it shows a much bigger problem: All kinds of transportation has some serious impact on the environment. So just taking ICEs or cars out of the equation doesn't solve the problems magically.

We need a much bigger vision and a set of solutions which addresses these problems.

[throwaway0a5e]

Except in cases where the transportation is highly specialized and optimized (e.g. a pipeline) you are going to have a hell of a time finding an example of human activity where the minimum environmental impact is not on the order of mass * distance.

[bayindirh]

OTOH, environmental impact, regardless of its distance to humans, never stays isolated to the place where it's happening.

It always affects distant places, human population or not.