The World Environment Day 2020 was hosted in Colombia in partnership with Germany on 5th June. The theme for World Environment Day, 2020 was 'Time for Nature'. World Environment Day, 2020 is celebrated every year on 5th June. It was started in 1974 and since then has been United Nation's principal vehicle for encouraging awareness and action for the protection of the environment. It is a global program having participation from 143 countries annually.