The phrase "potential impact" refers to the possible influence or effect that something might have in the future. It is about considering the potential outcomes or consequences that something could bring about. Full definition
But that just might be his point: the mere thought of potential impact of climate change is scary enough without needing to add any personal elements. (bookbrowse.com)
Or «half of schools state concerns regarding potential impact on pupil progress for training in schools». (schoolsweek.co.uk)
It was part of the panel's evolving effort to provide policymakers with a clear sense of what was known about potential impacts from various levels of warming and also what was uncertain. (dotearth.blogs.nytimes.com)