An updated and enhanced version of the popular NSTA Press book Understanding Climate Change, this practical curriculum allows you to engage your students in understanding one of the most key topics in science education. The ten-session unit provides extensive background information and step-by-step instructions for teaching this topic effectively within your existing curriculum. Each session uses three-dimensional methods to cover a different area of climate science, global warming, and environmental change. The authors include scaffolding suggestions, alignment with Next Generation Science Standards, and guidance on best practices for teaching this complex topic as either a four-week standalone unit or within your other chemistry, biology, or environmental science lessons. This update includes interviews with current "climate change agents," sharing stories of their work, career pathways, and what gives them hope for the future. Together the sessions provide a strong foundation for understanding the science behind the greenhouse effect and climate change. It encourages your students to conduct their own scientific research, develop conclusions, discuss ripple effects, and examine solutions leading to actions students can take on their own or as a group. Ideal for middle and high school science teachers both new and veteran, this field-tested unit helps you engage your students in climate change learning while providing them with a hopeful outlook for their future.