Call for Expressions of Interest to Host World Environment Day 2027 or 2028
Nairobi, 15 October 2025 — United Nations Environment Programme (UNEP) is inviting Member States to submit Expressions of Interest to host the global observance of World Environment Day in 2027 or 2028.
Observed annually on 5 June and since its launch in 1973, World Environment Day has grown into one of the world’s most influential platforms for environmental outreach. Each year it mobilizes millions of people, thousands of organizations, and governments across the world to take action for a healthier, more sustainable planet.
Why host?
Hosting World Environment Day offers countries a unique opportunity to demonstrate leadership on environmental issues, showcase solutions and capture worldwide attention through high-level participation, global media coverage and UNEP’s advocacy campaign, which reaches millions each year.
Past host countries have used the occasion to drive both awareness and policy change. For example, in 2018, the focus on plastic pollution helped pave the way for greater momentum for action on plastic pollution, culminating in a landmark UNEA resolution in 2022. In 2024, under the theme of land restoration and drought resilience, campaign messages reached more than 400 million people online.
Host countries are expected to organize and fund in-country events—ranging from policy forums to public campaigns—and to contribute to UNEP’s global outreach effort. Joint bids from two or more Member States are permitted.
How to apply
Full details of the call, including host country responsibilities, are available here.
Completed Expressions of Interest form may please be submitted no later than 31 December 2025 to Daniel Cooney, UNEP Communication Director, at [email protected]
Reports from recent campaigns can be accessed below:
World Environment Day 2025 Global Report
World Environment Day 2024 Global Report
World Environment Day 2023 Global Report
World Environment Day 2022 Global Report
World Environment Day 2021 Global Report
Be the next host of one of the world’s largest environmental celebrations! Bring the world together on 5 June to inspire action for a sustainable future.