Coastal forests in the southeastern United States are increasingly threatened by rising seas and saltwater moving further inland. These changes are happening unevenly across the region and scientists are working to understand where forests are most at risk and why. In this study, researchers used satellite imagery collected over decades to track how the health and stability of these forests have changed over time. They focused on identifying places where forests are becoming less resilient — meaning they are less able to recover from stress or disturbance. The study found that areas near sea level, especially in Louisiana, Florida, Virginia, and North Carolina, show the greatest signs of weakening. These forests are often located on peninsulas or near rivers, making them more exposed to saltwater and other stressors. By using computer models and environmental data, the team also discovered that some changes cannot be explained by known factors like drought or proximity to water, suggesting other hidden risks may be at play. This research helps pinpoint vulnerable areas and highlights the need for local strategies to protect forests that are most at risk. As climate change and sea-level rise continue, such information is critical for guiding conservation and planning efforts.