“ Nearly 50% of the land surface has been transformed by direct human action, with significant consequences for biodiversity, nutrient cycling,... and climate. ” ​ — Global Change and the Earth System.
” Hampir 50% permukaan tanah telah berubah karena kegiatan manusia, dan semua ini telah sangat memengaruhi keanekaragaman hayati, rantai makanan,... dan iklim. ” ​ — Global Change and the Earth System.