My bad, guess it depends how you read it.
again from wiki...
Usage notes
Effect is often confused with “
affect”. The latter is used to convey the influence over existing ideas, emotions and entities; the former indicates the manifestation of new or original ideas or entities:
- “...new governing coalitions have effected major changes” indicates that major changes were made as a result of new governing coalitions.
- “...new governing coalitions have affected major changes” indicates that before new governing coalitions, major changes were in place, and that the new governing coalitions had some influence over these existing changes.
So I guess the original statement could be done either way still. But I think KG needs
affect
I am writing to you to tell you how you can stand for change and positively effect this situation.
I am writing to you to tell you how you can stand for change and positively affect this situation.