3 ms·
Where did all that iron that we mined run off to? Is it not on the surface anymore?
by deathgrips 6y ago
Where did all that iron that we mined run off to? Is it not on the surface anymore?
- est31 6y ago1. it might be covered in sediments requiring expensive movement for little gain (and how do you know where the iron was/is?) and 2. the structures that don't get covered rust away and turn into dust that erosion distributes over large areas. Post apocalyptic societies will be able to salvage iron here and there for a long time, but will it be enough to cover our planet with railways and kick off a new industrial revolution? Also, the iron was only an example. Coal and other fossil fuels we can only burn once, then they are gone.