This volume presents an introductory exploration of past, present and future change in the environment. The author introduces the interdependent parts of the natural environment - ecological, geological and cosmic - and the dynamic nature of the environmental system. The book examines human-environment interaction, and biological and physical evidence and causes of environmental change over a range of timescales. Exploring rates and directions of change, Huggett postulates an unending adaption of the ecosphere and its parts to ever-changing circumstances, including those triggered by human actions, and looks towards the likely environmental changes in the future.