1. "Sun Day" is celebrated every year on 3 May. The "Sun Day" was established by the United Nations Environmental Programme (UNEP) in 1978.

  2. World Vegetarian Day was established as an annual celebration to promote the joy, compassion and life-enhancing possibilities of vegetarianism. The day was originated by the North American Vegetarian Society in 1977 and endorsed by the International Vegetarian Union in 1978. October 1st is the official date, however if necessary, individuals may schedule their event on a nearby date instead.

  3. World Environment Day (WED) is celebrated every year on 5 June in more than 100 countries around the world. World Environment Day was established by the UN General Assembly in 1972 to mark the opening of the Stockholm Conference on the Human Environment and the creation of UNEP. WED is commemorated each year in a different city of the world. The World Environment Day is one of the principal vehicles through which the United Nations stimulates worldwide awareness of the environment and enhances political attention and action. The 6th conference of German environment ministers in 1976 determined that World Environment Day would also be celebrated in Germany.

  4. The 3 March 1973 is the anniversary of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). It was launched by a decision to counter the increasing threat to wild fauna and flora by international trade. Since then it has become one of the most effective tools in the fight against the loss of species.

  5. In November 1971, at the request of the European Confederation of Agriculture, FAO'S member governments supported the annual observance of 21 March as World Forestry Day. Since then many nations have adopted this practice.

  6. Responding to widespread environmental degradation, Gaylord Nelson, a United States Senator from Wisconsin and an environmental activist, called for a national day to celebrate the earth, to be held on April 22, 1970. The first Earth Day had 20 million participants and celebrants across the United States. Earth Day is now observed each year on April 22 by more than 500 million people and national governments in 170 countries.