What effect does the reservoir have on the urban climate? Will the reservoir cause drought and earthquake?

Impact of reservoir on urban climate: 1. Reservoirs can reduce the temperature difference in cities; Create a regional microclimate environment in the city, that is, the area near the reservoir will be relatively cool in summer, because the evaporation of water absorbs the heat in the air; Winter will be relatively warm at first, but it will be quite cold in early spring, because the reservoir will absorb heat from the surrounding air if it is to thaw. 2. The reservoir can adjust the humidity in the air. Increasing air humidity can make urban residents breathe better fresh and humid air. When the reservoir is building a dam, the pressure of the dam's own weight on the earth's crust will produce an earthquake! But it's so slight that most people don't feel it. Reservoirs can cause drought. Can it be understood that the construction of reservoirs intercepted most of the water in the upper reaches of the river, while the water in the lower reaches decreased sharply or even stopped? The most typical region is the Middle East in West Asia. The Golan Heights, known as the "Water Tower in the Middle East", has built dams and formed reservoirs. Resulting in the decrease of water quantity in downstream rivers. This makes drinking water difficult in downstream areas.