The theme for World Environment Day 2021 is 'Ecosystem Restoration' and Pakistan will be the global host for the big day. This day will also see the launch of the UN Decade on Ecosystem Restoration. In 2020, the theme was 'Celebrate Biodiversity'.
The main idea behind celebrating World Environment Day is to highlight the importance of the environment and to remind people that nature should not be taken for granted. According to the UN, this day provides us with an opportunity to broaden the basis for an enlightened opinion and responsible conduct by communities, enterprises and individuals in preserving and enhancing the environment. It is celebrated across the globe to respect and acknowledge everything that the environment has given us and to take the pledge that we will protect it. On this day, governments and normal citizens focus their efforts on a particular environmental issue to generate awareness.