There's a few startups investigating burying trees for carbon capture. This article has an overview: https://www.technologyreview.com/2022/12/15/1065016/a-ste

There's a few startups investigating burying trees for carbon capture. This article has an overview: https://www.technologyreview.com/2022/12/15/1065016/a-stealth-effort-to-bury-wood-for-carbon-removal-has-just-raised-millions/ https://www.technologyreview.com/2022/12/15/1065016/a-stealt... They either keep them bone dry or pickle them in brine to prevent decomposition, though they're still at the stage of proving how effective this is long term.