Modern hydrology and engineering have solved some tremendous problems, allowing societies to expand and thrive in regions once considered too difficult to inhabit. With more people, more complicated economies, and more variability and extremes from climate impacts, engineering our way out of water challenges seems harder, more expensive, and less reliable. Maybe solutions from the past can become new again? In this episode of ClimateReady, we examine how traditional, indigenous knowledge and nature-based solutions (NbS) can complement modern approaches. Dr. Boris Ochoa-Tocachi of Imperial College London joins the show to discuss the work he is doing with rural communities in the Andes of Peru, using pre-Columbian technology such as amunas and NbS like bofedales alongside modern water storage and conveyance methods, to help provide water security for local communities as well as Greater Lima and its nearly 10 million inhabitants, all while avoiding the traps of “parachute science.” Following the interview, we hear a different perspective from Peru in our “Climate of Hope” segment. María Angélica Villasante Villafuerte and Hernan Tello, both members of Peruvian Youth Against Climate Change, discuss their work to increase youth involvement in local and national decision making around climate change to achieve an intergenerational transfer of good practices and lessons learned.