▲ 102 ▼ How a South African town cleaned up its polluted river using stones, wood and sand (www.theguardian.com) submitted 17 hours ago by Fossy@programming.dev to c/upliftingnews@lemmy.world 2 comments fedilink hide all child comments
[–] MangoCats@feddit.it 2 points 16 hours ago Biochar is good stuff, if you've got a renewable supply. permalink fedilink source