The entire world is currently abuzz about environment sustainability. It means maintaining the environment in a manner such that future generations can live in the same way as us. It means maintaining natural ecosystems. We need to respect natural cycles and direct human society that can live within these. Details about environmental sustainability are explained in this video. We need to understand the current situation well before major changes from climate change start affecting us. The role of photosynthesis with respect to life has been explained, and we need to make sure this continues to take place. We must not destroy this delicate balance through our activities.