Trial courts possess the inherent power to modify final injunctive orders to enforce a judgment or accommodate changed conditions. We apply a two-step inquiry when reviewing the grant or denial of a such a motion. First, we must consider whether the evidence shows actual changed circumstances.
Absent changed circumstances, a trial court lacks the authority to modify a final, permanent injunction. Id. Second, if relevant circumstances have changed, we must determine whether the trial court abused its discretion in ruling upon the requested modification.
Modification of an injunction may be appropriate when changed circumstances render an injunction "unnecessary or improper." We have said that "[w]hen the issue is whether changed circumstances warrant a modification of prior injunctive orders, a balancing of equities is not only appropriate but is also required."