Roads, runoff, and schmutz
- Another externality....
> Highway drainage poses its own problems. It can be a grimy mix of trash, oil, antifreeze, rubber, hydraulic fluid, exhaust particles, brake dust and microscopic bits of metal along with soil and organic materials, including human and animal waste. The flow also can contain solvents, detergents, fertilizers and pesticides.And a link:
> It is difficult to determine how much contaminated water washes off state highways. Although highways represent roughly 2% of the land area that generates storm water, some studies suggest that the discharges are greater and far more toxic than other sources of runoff.
"Hope cannot be said to exist, nor can it be said not to exist. It is
just like the roads across the earth. For actually there were no roads
to begin with, but when many people pass one way a road is made."