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Desertification is a gradual process of increased soil aridity.Desertification has been defined in the text of the United Nations Convention to Combat Desertification (UNCCD) as "land degradation in arid, semi-arid and dry sub-humid regions resulting from various factors, including climatic variations and human activities."
Areas that meet that definition now cover 40.6% of all land on Earth, excluding Antarctica. And an additional 3% of the world’s currently humid areas are projected to become arid by the end of ...
Desertification has also affected North Africa, which includes Egypt, Libya, Algeria, Tunisia, and Morocco, as a result of climate change, overgrazing, and unsustainable agricultural practices. Food and water shortages, population displacement, and biodiversity loss are all repercussions of desertification in these places, underscoring the ...
This has a profound ecological impact in that Colombia is extremely rich in biodiversity, with 10% of the world's species, making it the second most biologically diverse country on Earth. [ 151 ] In 2024, deforestation in Colombia's Amazon region has increased by 40% during the first quarter compared to the same period last year, according to a ...
A satellite image of the Sahara, the world's largest hot desert and third largest desert after Antarctica and the Arctic. Desert greening is the process of afforestation or revegetation of deserts for ecological restoration (biodiversity), sustainable farming and forestry, but also for reclamation of natural water systems and other ecological systems that support life.
Historic desertification is the study of the desert-forming process from a historic perspective. It was presumed in the past that the main causes of desertification lay in overuse of the land resulting in impoverishment of the soil, reduced vegetation cover, increased risk of drought and the resulting wind erosion. However recent projects to ...
The Sahara (/ s ə ˈ h ɑːr ə /, / s ə ˈ h ær ə /) is a desert spanning across North Africa.With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic.
The Aralkum Desert (Uzbek: Orolqum choʻli, Оролқум чўли, Kazakh: Аралқұм шөлі, Russian: Пустыня Аралкум) is a desert that has appeared since 1960 on the seabed once occupied by the Aral Sea. [1] It lies to the south and east of what remains of the Eastern Basin Aral Sea in Uzbekistan and Kazakhstan. It is ...