For me, this is a principle that starts at home, every so often you have to move alone or accompanied to keep our house clean, right? in our house that we adore, where the people we love are and the things we appreciate; likewise, the planet, everyone's house, deserves us to do something for her from time to time.
We must always do our best to keep our world healthy and pollution-free, for the sake of our families and ourselves, right? that is, how am I going to reach 100 years of life if I only breathe polluted air and walk on waste? x.x