On the occasion of the first International Zero Waste Day, António Guterres, Secretary General of the United Nations, called on the General Assembly of countries to launch a war against waste.

Every year, World Rhino Day is celebrated on September 22, 2022. The day plays an important role in raising awareness to save the rhino species. Rhino horns are hunted for various medicinal purposes.

World Sparrow Day history; World Sparrow Day, observed every year on 20 March, is a day to raise awareness about conservation of sparrows.

World Meteorological Day is an annual event observed on March 23rd to commemorate the establishment of the World Meteorological Organization

World Earthworm Day is celebrated on October 21 to honor these underrated animals. The date commemorates the month in which Charles Darwin, the father of earthworm ecology, published his book 'The Formation of Plant Mold Through the Action of Worms'.

World Environment Day, 2022 with the campaign slogan - "Only One Earth" focuses on "Living Sustainably in Harmony with Nature". Annually observed on June 5, the day stresses on the importance

World Ocean Day is observed annually on 8 June to make people aware of the negative Impact of Human activities, such as garbage disposal, sewage, oil leaks from ships on the ocean.