Abstract: A method and apparatus for environmental occupant monitoring and hazard notification and mitigation monitors occupants in a spatial environment, sending notifications to third parties upon detection of hazardous conditions and executing safety protocols in using environmental control systems to mitigate the hazard. As specifically applied to a vehicle, an occupant sensor is utilized to detect a driver and passengers. If the driver leaves the passengers behind in the vehicle, the system notifies the driver. If a hazardous condition such as elevated temperature is detected in the vehicle, emergency response services are notified and the control systems of the vehicle are used to mitigate the hazard.