World Oceans Day provides a unique opportunity to honour, help protect and conserve our world’s shared ocean. The day is marked in a variety of ways, including launching new campaigns and initiatives.

World Environment Day is the United Nations day for encouraging worldwide awareness and action to protect our environment.

World Bicycle Day commemorates the joys of riding a bicycle, which is a simple, affordable, reliable, clean and environmentally friendly means of transportation.

The International Day for Biological Diversity aims to increase understanding and awareness of biodiversity issues.

World Migratory Bird Day is an awareness-raising campaign highlighting the need for the conservation of migratory birds and their habitats. It aims to draw attention to the threats faced by migratory birds, their ecological importance and the need for international cooperation to conserve them.

The UN established World Tuna Day on May 2 to raise awareness about the importance of tuna and to promote more sustainable fishing practices, especially as many tuna stocks around the world are threatened by overfishing.

The annual World Day for Safety and Health at Work promotes the prevention of occupational accidents and diseases globally.

The 2020 International Union for Conservation of Nature (IUCN) World Conservation Congress will be held on 3-11 September in Marseille, France.

Climate change represents the biggest challenge to the future of humanity and the life-support systems that make our world habitable. That is why the theme for Earth Day 2020 is climate action.

World Health Day aims to create awareness of a specific health theme to highlight a priority area of concern for the World Health Organization.