The Ecolitan series deals with post apocalypse scenario where the earth has been depleted, and people ride bikes. Crucially every action has an ecological cost

The Ecolitan series deals with post apocalypse scenario where the earth has been depleted, and people ride bikes. Crucially every action has an ecological cost that must be paid by sweat equity = a rich man can not hire people to do his stuff = he must shovel his own snow etc (All transport has an eco cost - fly somewhere and you might have a month of work that can not be passed to another. They are a good read. https://www.lemodesittjr.com/ecolitan_matter/index.html https://www.lemodesittjr.com/ecolitan_matter/index.html https://us.macmillan.com/series/ecolitanmatter https://us.macmillan.com/series/ecolitanmatter