This is a book about paying attention to your habitat and how it is connected to the environment. The environment is where you are. To be in a habitat does not require a trip to a rain forest or a national park. To become an eco-tracker, all you need to do is observe and record what you see today, what you see tomorrow, and what is different between those two points in time. Then you look for what caused that change. You can keep the information yourself or you can share it with scientists who use what you see to better understand things like global climate change or how hawks migrate. When you share your findings with scientists, you become a citizen scientist. This book shows you how, as an eco-tracker and citizen scientist, you can learn about and care for a changing planet.