The United Nations (UN’s) World Soil Day ( WSD ) is observed annually across the globe on 5th December to raise awareness about the vital role of healthy soil and to encourage the sustainable management of soil resources.

5 December 2025 marks the observance of the 12th WSD.

2025 Theme: “Healthy Soils for Healthy Cities”

Focus: The 2025 theme highlights the crucial role of soil in urban resilience and sustainability, challenging the perception that soil conservation is only a rural concern.

Background:

Proposal: In 2002 , the International Union of Soil Sciences (IUSS) proposed establishing an international day to celebrate soil.

Support: The Food and Agriculture Organization of the United Nations (FAO), led by the Kingdom of Thailand within the Global Soil Partners

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