Desertification is the degradation of land in arid, semi-arid and dry sub-humid areas, it is caused primarily by human activities and climatic variations.

Desertification does not refer to the expansion of existing deserts. It occurs because dryland ecosystems, which cover over one third of the world’s land area, are extremely vulnerable to overexploitation and inappropriate land use. Poverty, political instability, deforestation, overgrazing and bad irrigation practices can all undermine the productivity of the land. The World Day to Combat Desertification and Drought is observed every year to promote public awareness of international efforts to combat desertification. The day is a unique moment to remind everyone that land degradation neutrality is achievable through problem-solving, strong community involvement and co-operation at all levels.

In 2026, Desertification and Drought Day put rangelands at the centre of global attention. Held under the theme “Rangelands: Recognize. Respect. Restore.”, this year’s observance calls for greater recognition of the economic, ecological and cultural value of rangelands, respect for their traditional stewards and stronger investment in restoring degraded rangelands. Rangelands are among the world’s most extensive yet most overlooked ecosystems. Covering more than half of the Earth’s land surface, they play a vital role in food security, water cycles, biodiversity conservation and climate resilience. They support the lives of around two billion people worldwide, including many pastoralists and Indigenous Peoples whose knowledge and stewardship have sustained these landscapes for generations. This year’s event aligns with the International Year of Rangelands and Pastoralists, helping to underscore the need to raise awareness, encourage responsible investment and strengthen policies that safeguard rangelands and pastoralist livelihoods. Up to half of the world’s rangelands are degraded or at risk, with serious consequences for food and water security, biodiversity, climate resilience and rural livelihoods. Yet viable pathways for action already exist. Investing in sustainable land and water management, improved drought preparedness and community-led restoration can help secure these landscapes and the people who depend on them. Now is the time to recognize the value of rangelands, respect their traditional stewards and restore these landscapes for future generations.

Links:
World Day to Combat Desertification and Drought