This call to action is a three-part publication developed for educators by educators. “Part 1: The Imperatives for Environmental Literacy” defines the field and recounts its development in California. “Part 2: Voices from the Field” presents case studies of effective instruction at every grade level. “Part 3: Roadmap for Instruction” describes steps to increase environmental literacy integration. Discussion and reflection questions in each section will help move along your practice, individually or with your colleagues.