1. People live in two worlds. Like all living things, we inhabit this natural world, created over the Earths 5-billion-year history by physical, chemical, and biological processes. The other world is our own creation: homes, cars, farms, factories, laboratories, food, clothing, books, paintings, music, poetry. We accept responsibility for events in our own world, but not for what occurs in the natural one. Its storms, droughts, and floods are acts of God, free of human control and exempt8 fro
