World Environment Day

Climate / Sustainability

World Environment Day

Next date5 June 2027
LocationWorldwide
Related climate topicSustainability

See the wider topic page for connected events and context.

Overview

What World Environment Day does

World Environment Day is the United Nations Environment Programme’s annual June 5 platform for environmental outreach, public participation and a yearly campaign theme.

ScaleUNEP’s largest public environment platform

UNEP describes World Environment Day as the biggest international day for the environment, celebrated by millions of people worldwide.

What happensA host, a theme and global participation

Each edition uses an official campaign site for the host, theme, featured updates and participation material.

Why follow itThe theme sets the year’s public focus

The annual focus helps explain which environmental issue governments, schools, NGOs and campaigns will amplify around 5 June.

Campaign siteHost, theme and participation updates

Use the official campaign website for the current year’s host country, theme, featured actions and public materials.