"destabilizing effect" refers to something that causes disruption or imbalance in a situation, system, or environment. It means that it creates an unsettling impact, making things less stable or secure. Full definition
John Broder has a story above the fold in Sunday's Times describing growing concerns of Defense Department planners over the potential destabilizing effect of the building global greenhouse effect. (dotearth.blogs.nytimes.com)
The education space was (and still is) experiencing high turnover of educational leaders in struggling schools, which creates a profoundly destabilizing effect on the teachers and students who are most at risk. (edleadershipsims.com)
The portrait of God as self - giving love, capable of sharing in our suffering, can have a very destabilizing effect on society and its history. (religion-online.org)