Does God need to supernaturally "intervene" in order to bring about the diversity of life that we observe today? Is that kind of action different from God’s ordinary action? We begin our three-part series with Robert John Russell’s description of how views of divine action have changed throughout history, excerpted from his book Cosmology: From Alpha to Omega. Part 2 addresses why “intervention” in the natural world is a problem philosophically, theologically, and scientifically; and Part 3 explains Russell’s own theory of divine action in the natural world.