Every year on April 22, Earth Day is celebrated. In this way, people’s awareness of nature and the environment is strengthened. Then many organizations and individuals from all over the world participate in various activities. This year’s theme is “Let’s Rebuild Our Earth”. The focus is on natural processes and green technologies that can restore the world’s ecosystems. There are as many as 51 suggestions on how to be the “guardian of planet Earth” every day of the year.