Providing a reliable evaluation on corporate environmental performance and assessing how it can contribute to business success have been in focus of interest for a long time. However, as Lober  stresses, there is still no clear and commonly accepted definition of “greenness” or (good) environmental performance. In this book the concept of environmental performance is analyzed in connection with general corporate performance. Focus is put on links between company and environmental performance; as well as between different components of environmental performance. Based on literature review, the components of environmental performance are summarized in the author’s own model. Four identified elements of company environmental performance are differentiated: 1. environmental management, 2. concrete environmental actions and innovations, 3. environmental load and 4. changes in the state of environment as a consequence of company activities. Corporate environmental performance is evaluated in the practice as well. Empirical research is based on corporate surveys and interviews.