6th Global WOPs Congress
The Global Water Operators’ Partnerships (WOPs) Congress is organized by UN-Habitat through the Global Water Operators’ Partnerships Alliance (GWOPA).
The Congress is the foremost gathering within the UN system for water and sanitation operators. It brings together operators, local and national governments, development partners, and stakeholders to exchange knowledge, inspire action, mobilise support for WOPs, and strengthen capacities…
The Open-ended Intergovernmental Expert Working Group on Adequate Housing for All
The Open-ended Intergovernmental Expert Working Group on Adequate Housing for All of the United Nations Human Settlements Programme will hold its second session (OEWG-H2) from 22 to 23 October 2025. The session will be held at the UN-Habitat Headquarters in Nairobi, Kenya.
World Food Day
World Food Day promotes awareness of hunger and action for the future of food, people, and the planet. The Day aims to raise awareness on the importance of ensuring a world where everyone has access to diverse, nutritious, affordable, and safe foods.
The Food and Agriculture Organization of the UN (FAO) designated 16 October as World Food Day in 1979. The Day takes place annually on 16 October.
First International Green Cities Conference
The First International Green Cities Conference will bring together mayors, ministers, city leaders, UN agencies, civil society, private sector actors, and financial institutions to celebrate achievements, exchange knowledge, foster partnerships, and mobilize resources for the adoption of integrated urban solutions. The conference will also mark two important milestones. It will present the FAO Green Cities Criteria, a set of conditions that…
World Migratory Bird Day
World Migratory Bird Day 2025 will focus on the theme, ‘Creating Bird-friendly Cities and Communities’. The theme highlights the need for a healthy coexistence between birds and humans and the opportunities to create and adapt environments that support migratory bird populations across all communities, from cities to smaller towns and communities.
5th meeting of the UN Forum of Mayors
The 5th meeting of the UN Forum of Mayors, “Cities Shaping the Future”, will be held in-person at the Palais des Nations, in Geneva, on 6-7 October 2025. Mayors from around the world will come together to exchange good practice and to collaboratively draft a set of recommendations, emphasizing the critical role of cities and local actors in shaping a sustainable future.
World Architecture Day
Created by the UIA in 1985, World Architecture Day is celebrated annually on the first Monday of October coinciding with the UN-Habitat Global Observance of the World Habitat Day.
World Habitat Day
World Habitat Day is marked on the first Monday of October each year and is recognized by the United Nations to reflect on the state of towns and cities, and on the basic right of all to adequate shelter. The day is also intended to remind the world that everyone has the power and the responsibility to shape the future of towns and cities.
World Maritime Day
The World Maritime Day theme for 2025 "Our Ocean, Our Obligation, Our Opportunity" reflects the ocean’s vital role in the world economy, with more than 80% of global trade transported by sea. The ocean is a source of jobs and food for millions of people, a home for countless marine species, and a regulator of the planet's climate, mitigating the impacts of climate change.
World Cleanup Day
On 8 December 2023, the United Nations General Assembly, in its seventy-eighth session, unanimously adopted resolution 78/122 “World Cleanup Day”, which proclaims 20 September as World Cleanup Day.
The resolution invites all Member States, organizations of the United Nations system, other international and regional organizations, and other relevant stakeholders – including civil society, the private sector and academia – to observe…
European Mobility Week
European Mobility Week is the European Commission’s flagship awareness-raising campaign on sustainable urban mobility. It promotes behavioural change in favor of active mobility, public transport, and other clean, intelligent transport solutions.
The main event takes place from 16 to 22 September each year, culminating in the popular Car-Free Day. Local authorities are encouraged to use this week to test innovative planning measures,…
13th International Conference on Sustainable Development
The 13th International Conference on Sustainable Development (ICSD) will be held on the theme, ‘Creating a Unified Foundation for Sustainable Development: Research, Practice, and Education’. The Conference aims to bring together individuals from research, policy, practice, and business to share ideas, present research fundings, and discuss professional issues relevant to sustainability science.
80th Session of the UN General Assembly (UNGA 80)
The 80th session of the UN General Assembly (UNGA 80) will open on Tuesday, 9 September 2025. The first day of the high-level General Debate will be Tuesday, 23 September 2025.
Second Africa Climate Summit
The Second Africa Climate Summit aims to redefine Africa’s aspirations for a climate-resilient and prosperous future. The Summit will focus on the theme, ‘Accelerating Global Climate Solutions: Financing for Africa’s Resilient and Green Development’.The Second Africa Climate Summit aims to redefine Africa’s aspirations for a climate-resilient and prosperous future. The Summit will focus on the theme, ‘Accelerating Global Climate Solutions:…
World Humanitarian Day
World Humanitarian Day is commemorated every year on 19 August to pay tribute to humanitarian workers killed and injured in the course of their work, and to honor all aid and health workers who continue to provide life-saving support and protection to people most in need. The Day highlights the importance, effectiveness, and positive impact of humanitarian work.