Rahul Sujanani - As civilization marches on, humanity struggles with a lack of suitably clean water and energy. These two are among the most important challenges we face, because solving them could mitigate other issues such as food scarcity, poverty, and poor health. Water and energy, however, are interconnected in a relationship known as the water-energy nexus; it takes copious amounts of energy to purify water on a large scale and a considerable amount of fresh water to produce energy.
