Water Resources Department
Presenter:Shawnm M. Saleh
• The Earth’s atmosphere is warming. Records show that surface temperatures have risen about 1.4oF (0.7oC) since the early twentieth century, and that about 0.9oF (0.5oC) of this increase has occurred since 1978.
• It is expected to cause an increase in volume of precipitation and average runoff in high latitudes and a decreased volume in some subtropical regions.
• It is likely to alter the reliability of raw water sources and supply infrastructure (e.g., dams, reservoirs) by changing the magnitude and frequency of flows.
• It may alter the demand of water and the ability to meet these demands.
• It is likely to cause an increase in the number of extreme events like floods and droughts.
• It may alter the raw water quality because of rise in water temperatures
Date:14/5/2026
