Global Forest Change dataset, also known as Hansen Global Forest Change or simply Global Forest Change, is a global remote sensing dataset of tree cover extent and change produced by researchers at the University of Maryland and collaborators. Derived from time-series analysis of the Landsat program, it provides near-global coverage at roughly 30 metres per pixel. The maintained release covers 2000-2024 and includes layers for tree canopy cover in 2000, annual tree-cover loss and year of loss, cumulative tree-cover gain for 2000–2012, reference image composites from the first and last available years, and a data mask.