all 3 comments

sorted by: hot top controversial new old
[–] 3 points 15 hours ago

It's easy, you bury the polluters in sand, then use the stones and wood on them.

  • source
  • [–] 2 points 15 hours ago

    Biochar is good stuff, if you've got a renewable supply.

  • source
  • [+] [B] 1 point 16 hours ago