On 4 April, the Intergovernmental Panel on Climate Change will release a major report on the progress and gaps in our efforts to cut greenhouse gas emissions and invest in renewable energy. The latest report of the Panel’s Working Group III, developed by 278 authors from 65 countries, will focus on the mitigation options available across different sectors, the potential of new technologies, the role of demand and consumerism, and the interplay between adaptation and mitigation.