Emergent information is created and utilized by an array of sensors. Each sensor is programmed with a trigger rule, which describes a local condition that must be met for the sensor to trigger an event signal, and a relationship rule, which describes a hierarchy of communication control among sensors in the array of sensors. When a predetermined weighted percentage of the sensors trigger event signals, emergent information that describes conditions at the array location is generated. An effectuator then takes appropriate steps to address the condition described by the emergent information.