Cloud seeding, a form of weather modification, is the attempt to change the amount or type of precipitation that falls from clouds, by dispersing substances into the air that serve as cloud condensation or ice nuclei. The usual intent is to increase precipitation, and, in some circumstances, to suppress hail. Silver iodide and dry ice (solid carbon dioxide) are the most commonly used substances in cloud seeding.
From a Unification perspective, several points can be made:
- The scientific investigation of cloud seeding is an example of human intelligence and ingenuity. Such human attributes, lacking in other living organisms, are connected to an internal, spiritual dimension and are reflections of God's intelligence and creativity.
- The efforts to modify precipitation by cloud seeding indicate a desire to understand the natural world and to take control over it, to whatever extent possible. This type of control over weather patterns needs to be done carefully, so that it does not harm people or the environment, but has beneficial effects. If undertaken with appropriate care, these efforts contribute toward what the Unification principle refers to as the fulfillment of God's "Third Great Blessing" to humanity.
- Even as cloud seeding can serve humanity, it provides an internal guiding principle: To live for the benefit of others. By so doing, people transcend the level of mere survival and travel the path toward inheriting God's nature. Eventually, people can vibrate with God's spirit and become channels for God's love to flow through to others and to the rest of creation. In this manner, humanity can fulfill what the Unification principle calls the "Three Great Blessings" and establish a world of peace and harmony.