Halinishi Yusuf rescues thirsty households in Kenya’s Makueni County. Photo/Susan Mwenesi/AWiM Nairobi When Jonah Kyalo looks at what used to be River Kwekuyu, a sad feeling engulfs him, as it’s a far cry from what used to be a flourishing and bubbling river snaking its way through Makueni County. The river has since turned into…