Desertification is land degradation, intensified by deforestation, erosion and overexplotation of water resources. The soil's fertility is lost.
Some mines, quarries and transport infrastructure alter the relief. The landscape is marred and its economic value is lost.
Soil polution is the result of chemical waste substances. As a consequence, the soil become toxic.
Natural erosion is increased by human activity such as deforestation, farming, excessive grazing of pastureland and the use of heavy machinery
Coastal relief is also altered by the construction of housing developments and marinas.
