Climate Change 2014: Mitigation of Climate Change is the third part of the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC) -- Climate Change 2013 / 2014 -- and was prepared by its Working Group III. The volume provides a comprehensive and transparent assessment of relevant options for mitigating climate change through limiting or preventing greenhouse gas (GHG) emissions, as well as activities that reduce their concentrations in the atmosphere. Chapter 1. Introductory Chapter -- Chapter 2. Integrated Risk and Uncertainty Assessment of Climate Change Response Policies -- Chapter 3. Social, Economic, and Ethical Concepts and Methods -- Chapter 4. Sustainable Development and Equity -- Chapter 5. Drivers, Trends and Mitigation -- Chapter 6. Assessing Transformation Pathways -- Chapter 7. Energy Systems -- Chapter 8. Transport -- Chapter 9. Buildings -- Chapter 10. Industry -- Chapter 11. Agriculture, Forestry and Other Land Use (AFOLU) -- Chapter 12. Human Settlements, Infrastructure, and Spatial Planning -- Chapter 13. International Cooperation: Agreements & Instruments -- Chapter 14. Regional Development and Cooperation -- Chapter 15. National and Sub-national Policies and Institutions -- Chapter 16. Cross-cutting Investment and Finance Issues -- Annex 1. Glossary, Acronyms and Chemical Symbols -- Annex 2. Metrics & Methodolgy -- Annex 3. Technology-specific Cost and Performance Parameters -- Annex 4. Contributors to the IPCC WGIII Fifth Assessment Report -- Annex 5. Expert Reviewers, Government Reviewers and Other Scientific Advisors of the IPCC WGIII Fifth Assessment Report -- Annex 6. Permissions to Publish.