Read at :
Desertification Causes Many Problems
Desertification plays a critical role in many of the world’s most pressing problems, including:
Dry, infertile, bare soil is unable to store carbon, releasing it into the atmosphere. Even if the world achieved zero carbon emissions from fossil fuels tomorrow, current agriculture practices would still create vast areas of bare soil that emit and are unable to store carbon. The climate would continue to change.
Desertification creates large areas of exposed soil which dramatically decreases the effectiveness of rainfall. Water evaporates or runs off instead of soaking into the soil where it is available for plants and living organisms and recharges water tables. This change leads to the increasing frequency and severity of both floods and droughts even with no change in rainfall in a specific region.
The world’s grasslands have the capacity to feed billions of human beings. Unfortunately, the rapid desertification of these lands is resulting in famine as well as decreased food safety for communities around the globe.