Urban Hydrologics proposes that water is central to the design and planning of climate-resilient cities. Climate Change is an imminent threat caused by human activities and excess greenhouse gas emissions. The increase in terrestrial and ocean surface temperatures will create a compounding effect and accelerate weather extremes. The runaway climate effect will reach a tipping point, accelerating the melting rate of ice caps, affecting the hydrologic cycle, and displacing vulnerable populations due to floods, drought, famine, forest fires, and rising coastal sea levels. Climate adaptation requires a transdisciplinary urban-hydro-logics approach, with new hybrid professionals equipped to strategize, plan, design, build, and manage nature-based solutions at diverse scales – from coastal to inland ecosystems.