Dr. Art's Guide to Planet Earth uses systems thinking to help us understand how our planet works and how we can support rather than disrupt earth's operating sy

Planet Earth: 25 Environmental Projects You Can Build Yourself provides an engaging guide to the natural world and encourages children ages 9 and up to get thei

From conservation to protecting endangered species to sustainable living, A Christian's Guide to Planet Earth offers a faith-based framework for viewing our res

Take an engrossing journey to explore the awesome ideas of science, with Dr. Art as your guide. Travel through atoms, energy forces, and the universe—and disc