Ecological thinking has gained increasing prevalence in recent decades, affecting political, social, and everyday life, sparking great conflicts of interest in public policy areas. In this accessible text, Mark Smith considers these conflicts and proposes a new approach to environmental responsibility.Ecologism addresses how we understand nature and the environment and applies this understanding to current sociological approaches. Smith examines how the core questions raised by a green perspective transform the frame of reference for modern thinking. He then outlines the distinctive features of ecological thought, discussing two areas of contention: the present generation's obligation to future generations and the relationship existing between humans and animals. He then explores the difficulties in applying conventional ideas such as rights or justice to issues of the environment, as well as the possibility that green thinking could lead to a new politics of obligation, one grounded firmly in ecological citizenship.Designed as an essential text for students of environmental studies, politics, and sociology, this book is necessary reading for anyone with an interest in ecology and its social environment.