Step 1: Understanding the Question:
The question asks for the specific calendar date on which World Soil Day is observed globally to raise awareness about soil health.
Detailed Explanation:
• History and Background:
World Soil Day (WSD) was recommended by the International Union of Soil Sciences (IUSS) in 2002.
Under the leadership of the Kingdom of Thailand and within the framework of the Global Soil Partnership, FAO supported the formal establishment of WSD.
In December 2013, the UN General Assembly officially designated December 5th as World Soil Day.
• Significance of the Date:
The date of 5th December was chosen because it corresponds with the official birthday of H.M. King Bhumibol Adulyadej of Thailand, who was one of the main proponents of this initiative and a great advocate for soil conservation.
• Purpose of the Day:
The day aims to focus attention on the importance of healthy soil and advocating for the sustainable management of soil resources.
Healthy soil is essential for food security, climate change mitigation (carbon sequestration), and water filtration.
Each year, a specific theme is chosen (e.g., "Soil and Water," "Keep soil alive, protect soil biodiversity").
• Global Observation:
It is celebrated worldwide by soil scientists, agriculturalists, and environmentalists through seminars, field demonstrations, and educational campaigns.
Step 2: Final Answer:
World Soil Day is celebrated annually on 5th December.