The phrase "artificial environment" refers to a human-made ecosystem that is different from the naturally-occurring environment. This can include environments created for scientific experiments, agricultural purposes, or urban development. Synonyms for the phrase might include "man-made environment," "constructed ecosystem," or "synthetic wilderness." These phrases all suggest that humans have played a significant role in creating the habitat. Other synonyms might emphasize different aspects of the environment, such as "crafted ecosystem," which suggests a deliberate, intentional design, or "engineered environment," which stresses the technological processes involved in creating the artificial space. Ultimately, the choice of synonym will depend on the context in which the phrase is used, as well as the speaker's goals and perspective.