Purchase Land for Preservation...
Declare it off limits to Corporations or development;
Except maybe a few designated camping areas,
and maybe a steem campground to pay the taxes,
and for gatherings of various steemian tags... like #nature meetup or #prepper #homestead #cannabis #freedom etc. etc. etc....
i can think of no better investment, and no better improvement to the World than allowing a tract of land to become Old Growth Forest..