To paraphrase the sixteenth-century poet John Donne, “No man is an island…like unto itself.” In the Caribbean, we have the sea and the air moving around us to reinforce this reality. Yet in terms of human behaviour, the literal meaning of the word insular remains prominent in our consciousness as we continue to witness decision-making processes in many of our Caribbean countries conducted with excessive egocentricity and unforgivable innocence. Governments, political leaders, and the very people they seek to represent persist in striving for narrowly defined self-interests, often to their own detriment, with insufficient regard for the inescapable linkages between Caribbean countries or between the Caribbean and the rest of the world. In this paper, the Saharan haze and other phenomena are used as examples of linkages forged between the Caribbean by the forces of nature and the acts of people. An attempt is made to demonstrate how increased understanding of the laws of nature may lead to greater utilization of science among both the people and their leaders and may create a new perspective in decision making in public health, international commitments, and national security. A case is also made for promoting understanding of the concept of a geophysically interdependent Caribbean among the people of the region. This premise of geophysical interdependence leads to the reasonable conclusion that only by sharing scientific knowledge and human and other resources in science and technology can Caribbean countries benefit rather than suffer when interacting with or seeking to alter nature.