The 5th of June is World Environment Day. Each year on this designated day, the UNAA seeks to focus world attention on the environment, and in particular, on positive programs that work towards protecting or restoring the world's natural heritage.

The UNAA actively promotes World Environment Day through the United Nations Association of Australia World Environment Day Awards. The Awards focus on the time-honoured theme: 'Think Global, Act Local.' The Awards recognise businesses, local governments, schools, community groups, individuals and the media whose work serves to protect, manage or restore the environment.