Mine too. Interestingly, there's some suggestion that lack of lignin-degrading processes in nature at the time is more of a myth than anything. Instead, a unique combination of climate and tectonic activity drove the high rate of coal production at that time: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4780611/
IMO if we ever want to start taking sequestration via this method seriously it's trivial to start now - Grow fast trees(e.g. Maple, Pine). Log trees. Bury trees deep underground. Repeat. All the tech exists, is ubiquitous, and trivially easy to de-carbonize in itself. The major sticking point, I'd argue the solitary issue, is there's no money to be made in it.
IMO if we ever want to start taking sequestration via this method seriously it's trivial to start now - Grow fast trees(e.g. Maple, Pine). Log trees. Bury trees deep underground. Repeat. All the tech exists, is ubiquitous, and trivially easy to de-carbonize in itself. The major sticking point, I'd argue the solitary issue, is there's no money to be made in it.