Is there one word for "having an effect/impact/influence over the surroundings/environment"?
20th century was ____, which may have resulted in changes to earth's soil microorganisms.
I considered the word influential, but it doesn't seem to be specifically about the surroundings/environment.
The kind of impact can be either positive or negative, I'm looking for the technical ability to change one's environment.
while most animals have indirect effect on their environment, beavers are ____, with their engineering abilities
Perhaps the word I'm looking for might be a term from Biology, or a term from Mechanics, like an object's potential of exerting force, doing an action which results in an effect over something else.