I’ve said this multiple times: a co2 removal system that turns co2 into a useful building material would be society changing.<p>Read between the lines: I’m saying figure out a better way to grow wood or make bricks.<p>Sawdust is not a waste material though, burying it is waste. Make paper or particle board out of it.
These efforts always seem so expensive in terms of time and effort per ton of sequestered carbon. Isn't there a more straightforward approach? Consider the following:<p>1) Get an agreement from the federal government to cut free timber on federal lands[1]. Prioritize timber that's nearest to the lee-side of a given range. Replant, obviously.<p>2) Transport your timber (downhill, hurray!) to one of the many adjacent deserts [2]. (Extra points for using hybrid trucks + regenerative braking).<p>3) Pile loosely. Deserts and fungus don't mix, so your carbon will stay put.<p>There's no new business model, no new market to create, no upstream bottlenecks, no moving dirt. Just cutting and stacking free carbon sticks.<p>[1] <a href="https://en.wikipedia.org/wiki/Federal_lands#/media/File:Map_of_all_U.S._Federal_Land.jpg" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/Federal_lands#/media/File:Map_...</a>
[2] <a href="https://en.wikipedia.org/wiki/List_of_North_American_deserts#/media/File:Deserts_of_North_America.svg" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/List_of_North_American_deserts...</a>
Let's make the wood into paper and put it in orbit instead: <a href="https://snafuhall.com/p/earthwrap.html" rel="nofollow noreferrer">https://snafuhall.com/p/earthwrap.html</a>