Reigon % land degraded by … deforestation over-cultivation over-gazing Total land degraded North America 0.2 3.3 1.5 5% Europe 9.8 7.7 5.5 23% Oceania 1.7 0 11.3 13% These two diagrams illustrate the main reasons of land degradation in the world and its different impacts on three areas during the 1990s. According to the first […]