What is one factor that can significantly impact rescue effectiveness?

Environmental factors, such as visibility and weather, are crucial in determining the effectiveness of a rescue operation. Poor visibility can hinder rescuers in locating the distressed individual, while adverse weather conditions, like high winds or choppy waters, can complicate rescue efforts by making it more dangerous for both the rescuers and the victim.

In adverse conditions, rescuers may need to adjust their approach, which could lead to delays or even render certain techniques infeasible. For instance, in heavy rain or fog, identifying the location of a diver in distress becomes much harder, and strong currents can sweep individuals away from the rescue area. Thus, understanding and adapting to environmental conditions is vital for conducting a successful rescue.

While the number of rescuers and the time of day can be important, and the diver's health history can influence the rescue process, environmental factors have a direct and immediate impact on operational safety and efficiency.