Area of world's forests before agriculture, conceptual image. The pre-industrial area of forest has been estimated at 5.9 billion hectares. As of 2012, forests cover 31 percent of the world's land surface, just over 4 billion hectares, a reduction of 32 percent from the original area. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nieman, Adam |
Bildgröße: | 4322 px × 2431 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |