Book excerpt: Walter A. Rosenbaum’s classic Environmental Politics and Policy, Tenth Edition once again provides definitive coverage of environmental politics and policy, lively case material, and a balanced assessment of current environmental issues. The first half of the book sets needed context and describes the policy process while the second half covers specific environmental issues such as air and water; toxic and hazardous substances; energy; and a global policymaking chapter focused on climate change and transboundary politics. Covering major environmental policy initiatives and controversies during President Obama's two terms and capturing the sudden and radical changes occurring in the American energy economy, this Tenth Edition offers the needed currency and relevancy for any environmental politics course.