This 9th edition of the Emissions Gap Report assesses the latest scientific studies on current and estimated future greenhouse gas emissions and compares these with the emission levels permissible for the world to progress on a least-cost pathway to achieve the goals of the Paris Agreement. This difference between “where we are likely to be and where we need to be” is known as the ‘emissions gap’. As in previous years, the report explores some of the most important options available for countries to bridge the gap. This report has been prepared by an international team of leading scientists, assessing all available information, including that published in the context of the IPCC Special Report, as well as in other recent scientific studies. This year’s report presents the newest assessment of the emissions gap in 2030 between emission levels under full implementation of the unconditional and conditional NDCs and those consistent with least-cost pathways to stay below 2°C and 1.5°C respectively.

This report explains to decision-makers and stakeholders the range of potential options available to close the emissions gap in 2020. It includes a package of ideas beginning with the big picture from the modeling community, then focusing on opportunities to reduce emissions from international sources of emissions, and finally highlighting current national efforts in important emitter countries.

This annex reviews recent policy changes in energy supply, industry, transport, buildings, and agriculture and forestry in selected G20 countries including Argentina, Brazil, China, the European Union, India, Mexico, South Africa and the United States of America.