 95% of East Rennel Island is still covered by undisturbed forests, but there has been a slow decrease in vegetation cover at a rate of minus 0.0011 NDVI per year between 2000 and 2015. The decrease was less pronounced inside the World Heritage Site compared to areas outside. To ensure the future conservation of BRWHS, the Government of Solomon Islands can use satellite data, unmanned air vehicles, and field surveys to monitor forest cover change. This article was authored by Meng Meng Wang, Guo Jin He, Nhat Ro Jin Ishwan, and others.