Etiqueta: aigua

Desertificació
Els processos de desertificació en un context de canvi global

Desertification processes in the context of global change. Desertification, the degradation of the soils in arid, semiarid and sub-humid zones, threatens 40% of the Earth’s surface, which is inhabited by 37% of the world’s population. The effects of desertification are varied, and include not only