World Soil Day (WSD) is held annually on 5 December as a means to focus attention on the importance of healthy soil and to advocate for the sustainable management of soil resources. https://www.un.org/en/observances/world-soil-day

International Animal Rights Day helps bring awareness to showing respect to animals and fighting for ending acts of cruelty against them.

International Mountain Day is observed on December 11th. The increasing attention to the importance of mountains led the UN declare to 2002 the UN International Year of Mountains. The first international day was celebrated for the first time the following year, 2003. Mountains are home of the 15% of the world´s population and a quarter of the world’s land animals and plants. https://www.un.org/en/observances/mountain-day