I'm particularly interested in seeing
half of Earth be protected by 2050. Towards this goal,
Protected Planet shares the
World Database on Protected Areas (WDPA) covering both terrestrial and marine
protected areas and tracks progress...

The
IUCN has a half dozen so-called "
Protected Area Management Categories" -- and those are important and worth adding to directly, but I hope we can especially push for enhancement of Category VI "Sustainable Use" with particular eye on private conservancies, land banks, forestry reserves, flood management zones, and potentially even the careful extractions of natural resources. Finally, I hope that we figure out how not to ravage the other half of Earth but rather we green it appropriately (e.g. our cities), share it with nature, and refrain from eco-devastation generally.