Book excerpt: This edited collection invites educational practitioners and theorists to speculate on - and craft visions for - the future of environmental and sustainability education. It explores what educational methods and practices might exist on the horizon, waiting for discovery and implementation. A global array of authors imagines alternative futures for the field and attempts to rethink environmental and sustainability education institutionally, intellectually, and pedagogically. These thought leaders chart how emerging modes of critical speculation might function as a means to remap and redesign the future of environmental and sustainability education today. Previous volumes within this United Nations Decade of Education for Sustainable Development series have responded to the complexity of environmental education in our contemporary moment with concepts such as social learning, intergenerational learning, and transformative leadership for sustainable futures. 'Envisioning Futures for Environmental and Sustainability Education' builds on this earlier work - as well as the work of others. It seeks to foster modes of intellectual engagement with ecological futures in the Anthropocene; to develop resilient, adaptable pedagogies as a hedge against future ecological uncertainties; and to spark discussion concerning how futures thinking can generate theoretical and applied innovations within the field.