Final answer:
Global dimming can lead to large scale changes in weather patterns, including altered precipitation intensity and local cooling due to particulates reflecting sunlight.
Step-by-step explanation:
The likely effect of global dimming in a region, which is caused by particulate matter in the atmosphere reflecting sunlight back into space, includes large scale changes in weather patterns. This could potentially lead to alterations in the intensity of precipitation events, which might manifest as changes in monsoon patterns or increased flooding in certain areas. The presence of particulate matter can also cool the local air temperatures by reducing the amount of sunlight reaching Earth's surface.