Research by National Hydraulic Research Institute Malaysia (Nahrim) shows that changing climate patterns are making both dry spells and heavy storms more intense. Although Malaysia has abundant rainfall all year round, it is unevenly distributed, said Syarikat Bekalan Air Selangor (Syabas) technical development executive director V. Subramaniam. In a nutshell, it does not always rain in rivers that supply raw water to treatment plants…