1. United Nations Environment Program Emissions Gap Report 2018 (United Nations Environment Program 2018).
2. Intergovernmental Panel on Climate Change Global Warming of 1.5°C: An IPCC Special Report on the Impacts of Global Warming of 1.5°C Above Pre-Industrial Levels and Related Global Greenhouse Gas Emission Pathways in the Context of Strengthening the Global Response to the Threat of Climate Change (Intergovernmental Panel on Climate Change 2018).
3. Intergovernmental Panel on Climate Change Climate Change 2014: Synthesis Report. Contribution of Working Groups I II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change Core Writing Team R. K. Pachauri L. A. Meyer Eds. (Intergovernmental Panel on Climate Change 2014).
4. World Bank and Ecofys State and Trends of Carbon Pricing 2018 (May) (World Bank 2018).
5. Global progress and backsliding on gasoline taxes and subsidies