Each person should take the opportunity to ask themselves these questions. Is what I am doing today positive and beneficial for the environment and for others who follow me? If I am removing a tree, am I planting at least 2 more to take its place? If I am having fun in the environment, am I doing something to help that environment be healthier after I leave? Am I polluting the air or the water? Am I disturbing and harming nature? Am I finding ways to make the environment healthier? Am I helping the biodiversity of the planet? Am I conscientious about taking up more space and creating more people than should be living in a given environment? Am I using more water than the land provides where I live? Am I eating more food at, the expense of others, wasting food, water, soil, plants, and trees? If I am making money off of the land, am I making up for whatever destruction I cause? Am I leaving the world a better place for those that follow? Am I leaving the world more beautiful with a biodiversity of wildlife, plants, and trees? Am I recycling?
If I don't think about any of these things, then maybe it's time to learn all that there is to learn about ecology. I designed a healthcare program. In that program, I ask myself every day, what did I do to enhance and improve the environment? I often do not think in terms of sustainability as much as I prefer to think about making environment healthier.