This book is a broad and detailed case study of how journalists in more than 20 countries worldwide covered the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment (AR5) reports on the state of scientific knowledge relevant to climate change. Journalism, it demonstrates, is a key element in the transnational communication infrastructure of climate politics. It examines variations of coverage in different countries and locations all over the world. It looks at how IPCC scientists review the role of media, reflects on how media relate to decision-making structures and cultures, analyzes how key journalists reflect on the challenges of covering climate change, and shows how the