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It has already been mentioned that climate change will decrease the quantity of water as a result of decreased precipitation and increased evaporation. Delving a bit further into the matter shows that there will be an increase in the number of days of drought with drought seasons beginning 15-30 days earlier than what is currently the situation. The regions of Bekaa, Hermel, and the South shall be affected the most due to existing dryness in those areas. A 6-8% reduction in total volume of water is forecasted with every 1°C increase in temperature. Additionally, climate change will reduce snow cover in Lebanon by 40% for an ambient temperature increase of 2°C and by 70% for an ambient temperature increase of 4°C. This will have negative consequences on river water volume and groundwater recharge. Also, snow melt will occur in early spring which will not coincide with high irrigation demands during the hot summer months. By 2050, snow will shift from an altitude of 1500m to 1700m and by 2090 it will be 1900m which will affect the recharge of most springs. An increase in the temperature by a mere 2°C can result in decrease of residence time of snow from 110 days to 45 days which can have a marked impact on the tourism sector. Less wet and substantially warmer conditions will extend the hot and dry climate encouraging intensification of temperature extremes.

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