Ecopoiesis is the creation of a stable, enduring ecosystem, and is the last stage of a terraforming process. It’s achieved through a series of successive ecological changes which depends on available resources and the initial environmental conditions.
Following a discussion we had on the site, I thought we could start up a thread to post the pre- and post-apocalyptic effects of a comet/minor planetary impact on a campaign world.
In one region of a forest, all of the trees are identical, down to the leaves and the twigs. If the PCs carve something into one of the trees, it could mystically propigate until it covered all of the trees, or could vanish since it was not carved into the one true tree.