Sustainable Growth

Abilities that creatures you control have that require sacrifices are replaced with "{t}: Add {1} to your manna pool." When any creature is sent to a graveyard, its controller may add {1} to their manna pool.
Your Ecosystem is unaffected by manna polarization (holding more {b/r} or {s} lands than {g/u} or {p/w} lands).
Give all {g/u} creatures you control +0/+2.
Reduce, Reuse, Recycle, Rectify.