Though categorized as Ecology/Environment, "This Is Hope" is a crossover book for self-identified environmentalists, species rights advocates, vegans and vegetarians, those dedicated to true sustainability, fish and wildlife "management" professionals, students of deep ecology, and those who want to know the biocentric story behind our dietary, consumer, and reproductive choices. The issues most important to us converge at our human ecology. Our human ecology consists of our relationships with and between other people, other species, our institutions, and the physical environment — between us and our external environment. Because of its comprehensive consideration of these relationships to all else, an examination of our human ecology reveals how multiple issues are connected—issues that advocates from diverse causes care about deeply. In "This is Hope", I compare the outcomes of two human ecologies; one is tragic, the other is full of promise. I describe in depth our current human ecology to illustrate how we are living inappropriately, cruelly, and unsustainably. It is obsolete and has been for a long time. Our current human ecology is the cause of our overpopulation, our overconsumption of resources, the poverty of ecosystems and people, and our disregard for the rights of individuals from other species. I propose the new human ecology to replace it.