·  Several chapters have been significantly revised.

- New guest author, Christopher Preston, University of Montana, has broadened the coverage of Chapter 2-Environmental Ethics-to give the chapter greater force and clarity. New information has been added to reflect the history, development, and maturation of thinking about environmental issues.

- New guest author, Jacob VanHouten, Delta College, has intergrated his knowledge of environmental regulations and the handling of hazardous materials into Chapter 3--Environmental Risk and Chapter 18--Environmental Regulations. Energy savings cost/benefit analysis, and the Great Lakes Resource Management are topics addressed through detailed discussion and case studies. Also included are the most current Environmental liability protection and grants through the new Environmental Protection Agency (EPA) Small Business Liability Relief and Brownfield Revitalization Act (SBLRBRA or “Brownfield Law”) as it relates to economics, assessment and management.

- Chapter 7- Populations: Characteristics and Issues is the result of the combination of two separate chapters from previous editions (chapters 7 and 8). In response to reviewer requests, several sections such as those on carrying capacity, limiting factors, and r and K strategists have been rewritten.

- Chapter 10- Nuclear Energy has been completely reorganized. New material has been added on the biological effects of ionizing radiation, measuring radiation, radiation protection, radioactive decay series, and dirty bombs.

·  Nearly 300 new photos have been added throughout the eleventh edition to present real-life situations. Several illustrations, graphs, and charts are new or revised to present detailed information in a form that is easier to comprehend than if that same information were presented in text form.

·  The new "What's Your Take?" feature found at the end of each chapter asks students to take a stand on a particular issue and develop arguments to support their position. This is an effective way to develop and foster critical thinking.

·  The new student learning tool, "Experience This", asks students to extend their learning by undertaking simple activities that relate to the content of the chapter.

·  McGraw-Hill Presentation Center. ARIS Presentation Center is an online digital library containing assets such as photos, artwork, PowerPoints, animations, and other media types that can be used to create customized lectures, visually enhanced tests and quizzes, compelling course websites, or attractive printed support materials. Accessed from the instructor side of the textbook’s ARIS website, Presentation Center’s dynamic search engine allows instructors to explore by discipline, course, textbook chapter, asset type, or keyword. Simply browse, select, and download the files you need to build engaging course materials. All assets are copyright McGraw-Hill Higher Education but can be used by instructors for classroom purposes.

·  McGraw-Hill’s ARIS is a new complete electronic homework and course management system, designed for greater ease of use than any other system available. Instructors can create and share course materials and assignments with colleagues with a few clicks of the mouse. Instructors can edit questions, import their own content, and create announcements and due dates for assignments. ARIS has automatic grading and reporting of homework, quizzing, and testing. Once a student is registered in the course, all student activity within McGraw-Hill’s ARIS is automatically recorded and available to the instructor through a fully integrated grade book that can be downloaded to Excel.