Sean O'Hogain Books

Water is essential for life on Earth, covering three-quarters of the planet's surface. However, millions struggle daily to access sufficient water, a situation worsened by climate change, which has expanded the water crisis to previously secure areas. This book explores how rainwater harvesting (RWH) can contribute to a resilient water infrastructure adaptable to climate change. The first section introduces a new perspective on water infrastructure, emphasizing "the worth of water," which reflects the multifaceted human relationships with water—social, cultural, hydrological, political, economic, technical, and spiritual. It showcases a technology portfolio from ancient Qanats to modern Rain Cities, discussing concepts like the circular economy of water and the idea of multiple waters for diverse users. The unique molecular structure of water and its implications are also illustrated. The authors view RWH as an inherent treatment system that employs physical, chemical, and biological mechanisms for water purification. The second part presents a design methodology, templates, and examples for analyzing RWH systems, alongside a literature review on health implications. The final section highlights RWH's role in achieving Sustainable Development Goals and maintaining Planetary Boundaries. Key topics include the circular economy of water, pollution removal mechanisms, supply and demand dynamics, system components, climate resil