Explanation

World Environment Day: 5 June

2022 theme: Only One Earth

2021 theme: Ecosystem Restoration

Explanation

World Mountains Day is celebrated on 11 December every year.

Theme 2020: Protecting Mountain Biodiversity

Theme 2021: Sustainable Mountain Tourism

Theme 2022: Women Move Mountains

Explanation

• World Mountains Day is celebrated on 11 December every year.
• Theme 2020: Protecting Mountain Biodiversity
• Theme 2021: Sustainable Mountain Tourism
• Theme 2022: Women Move Mountains
• Theme 2023: Restoring Mountain Ecosystems
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Explanation

World Mountains Day is celebrated on 11 December every year.

Theme 2020: Protecting Mountain Biodiversity

Theme 2021: Sustainable Mountain Tourism

Theme 2022: Women Move Mountains

Explanation

World Mountains Day is celebrated on 11 December every year.

Theme 2020: protecting mountain biodiversity

Theme 2021: Sustainable Mountain Tourism

Theme 2022: Women Move Mountains

Explanation

The world’s population hit eight billion on November 15,2022 which the United Nations declared as the Day of Eight Billion.

Explanation

The 3 November 2022 will be the first International Day for Biosphere Reserves.

Explanation

• October 31 was designated as World Cities Day by the United Nations in 2014.
• Theme 2020: Valuing our communities ad cities 
• Theme 2021:Adapting cities for climate resilience
• Theme 2022: Act local to go global

Explanation

• October 31 was designated as World Cities Day by the United Nations in 2014.
• Theme 2020: Valuing our communities ad cities 
• Theme 2021:Adapting cities for climate resilience
• Theme 2022: Act local to go global

Explanation

World Day for Audiovisual Heritage is celebrated on 27 October. 

Theme 2020: Your window to the world

Theme 2021: A window to the world

Theme 2022: Enlisting documentary heritage to promote inclusive, just and peaceful societies