We are trying. We keep bees. We use reusable shopping bags, not plastic. We plant trees. We create new fertile soil with compost, manure, potting soil and worms fed with table scraps. We heat water with solar energy. We recycle glass and metal. We walk, bicycle, or take public transportation and keep our houses well insulated in the winter.
Millions of others are trying too. To cite one of innumerable examples: People living on welfare benefits, organized by eco-activists, cultivate organic gardens on the rooftops of apartment buildings in large cities.