bring about -
cause to move into the opposite direction; "they brought about the boat when they saw a storm approaching"
turn pass into a condition gradually, take on a specific property or attribute; become; "The weather turned nasty"; "She grew angry"
bring about -
cause to happen, occur or exist; "This procedure produces a curious effect"; "The new law gave rise to many complaints"; "These chemicals produce a noxious vapor"; "the new President must bring about a change in the health care system"