World Environment Day 2021 was celebrated on June 5 with the theme “Ecosystem Restoration” . This theme highlighted the importance of restoring ecosystems worldwide to help combat climate change, preserve biodiversity, and improve human well-being. Ecosystem restoration can involve activities like planting trees, cleaning up rivers, and transforming degraded lands into healthy ecosystems. Key Points of World Environment Day 2021 1. Hosted by Pakistan : The main events took place in Pakistan, where they showcased several major restoration projects, including the Ten Billion Tree Tsunami project aimed at restoring forests and addressing climate change. 2. UN Decade on Ecosystem Restoration : This day marked the official launch of the UN Decade on Ecosystem Restoration (2021–2030) , a global effort to prevent, halt, and reverse the degradation of ecosystems on every continent. 3. Focus on Climate Action : Ecosystem restoration was promoted as a critical strategy for tacklin...