This document provides a practical guide for actions individuals and organizations can take to celebrate World Environment Day 2022 and promote sustainability. It outlines key actions for various sectors including governments, cities, finance, business, non-profits, science/education, and individuals. For governments, it recommends closing the emissions gap, protecting and restoring nature, and cleaning air and water. For individuals, it suggests raising your voice, making sustainable choices in areas like food, stuff, transportation, and fun activities. The guide encourages all to participate in the #OnlyOneEarth campaign by highlighting sustainability actions on social media.