time. A new interdisciplinary community of scientists, environmentalists, health researchers, therapists, and artists is coalescing around an idea: neuroconservation. Embracing the notion that we treasure what we love, those concerned with water and the future of the planet now suggest that, as we understand our emotional well-being and its relationship to water, we are more motivated to repair, restore, and renew waterways and watersheds. Indeed, even as water is threatened, or perhaps because of the threat, public interest in water is very high. We treasure it--or, perhaps more accurately, we spend our treasure to access water for pleasure, recreation, and healing. Wealthy people pay a premium for houses on water, and the not so wealthy pay extra for rentals and hotel rooms sited at the oceanfront, on rivers, or at lakes. Those into outdoor sports, especially fishers and hunters, are fiercely protective of it and have founded numerous environmental organizations designed to protect water habitats for fish, birds, and animals. Over the last two decades, spas have become a sort of modern equivalent to ancient healing wells. As an industry, spas are a global business worth about $60 billion, and they generate another $200 billion in tourism. In 2013, there were 20,000 (up from 4,000 in 1999) spas in the United States producing an annual revenue of over $14 billion (a figure that has grown every year for fifteen years, including those of the recession), and tallying 164 million spa visits by clients.12 Ecotourism provides water adventures and guided trips, often in kayaks, rafts, or canoes. Ocean and river cruises are big business. Cities are creating urban architectures focused on waterscapes, happiness, and sustainability. Museums and public memorials of all sorts often feature water to foster reflection and meditation. And many communities are working to transform industrialized and polluted waterfronts into spaces that are pleasant, environmentally sound, and livable.