Alexander Schreiber wrote:
Plant some nice swampy forests, let them grow for a
few hundred thousand
years (with the old trees toppling and sinking into the mud). Then bury
the whole mess with a kilometer or so of dirt, apply plenty of pressure
and some moderate heat for a few million years. Now dig it up again ;-)
And you wonder what to do with all the swamp land you bought in florida. :)
SCNR,
Alex.