Introduction
Human activity on the natural resources causes threats to the land sustainability either directly or indirectly. This paper examines soil erosion, genetically modified grains and overpopulation as the main threats to land sustainability.
Soil erosion and how it impacts the global food supply
Soil erosion is the washing away of the earth’s topsoil by agents such as wind and rainwater, and it occurs mainly due to human activities. Agriculture is the primary cause of soil erosion. When people clear natural vegetation to create framing fields, the topsoil is exposed to erosion agents such as the wind. Deforestation is also a leading contributor of soil erosion. As people cut ...
