How can individuals, communities and or nations live more sustainably?

We as the dominant species have a right and duty to keep the world in balance, Mankind has risen to the top and therefore must keep things in balance. Every living person can make a difference when we work together, every community can work together, and every nation can work together. If we all collectively made an effort, the world would be a better place as a whole, even if you only can contribute a little bit, that little bit still adds to the movement overall. If each person decides to recycle just this once, or throw their trash away properly that helps the community. If each community decides to clean up their trash, that helps their area more, and so forth and so on until nationwide we all assist in improving the environment.