We hope that these programs will have a positive 'impact on' the community. [=will help the community]
The stress of her job is having a negative 'impact on' her health. [=is harming her health]
We need to be concerned about the environmental 'impacts' of all this construction.
(..) Meanwhile, Republican leaders argue that this passage would be the very stimulant that a sluggish economy needs. No one has expressed an opinion as to how it will impact the pampered existence of Nicholas Van Orton. The one thing on which both Democrats and Republicans seem to agree (..)1997 The Game