Dead trees keep surprisingly large amounts of carbon out of atmosphere

my old boss had an idea - "bury trees".

There's a bit of nuance to be filled out, like challenges of forest plantation monoculture and so on, but it always sounded quite practical to me. Iirc the idea derived from "coal".

Better yet sink them in the deeper parts of the ocean. Below a certain depth wood loses its buoyancy due to the pressure levels of the water. (I think)