6dc5455c____The_Coppermind___17th_Shard__Entry
[Chapter] 15 [Entry] 
The ash. I don't think the people really understood how fortunate they were. During the thousand years before the Collapse, they pushed the ash into rivers, piled it up outside of cities, and generally just let it be. They never understood that without the microbes and plants Rashek had developed to break down the ash particles, the land would quickly have been buried. Though, of course, that did eventually happen anyway.
The Hero of Ages/Epigraphs - The Coppermind - 17th Shard
Entry