This dataset contains responses to question 4.6a - 'The Global Covenant of Mayors requires committed cities to report their inventories in the format of the new Common Reporting Framework, to encourage standard reporting of emissions data. Please provide a breakdown of your city-wide emissions by sector and sub-sector in the table below. Where emissions data is not available, please use the relevant notation keys to explain the reason why.' - on cities emissions in the 2020 Cities Questionnaire, as disclosed by cities through the CDP-ICLEI Unified Reporting System. The dataset includes data reported by the following cities: City of Anchorage, City of Athens, City of Berlin, City of Boston, City of Buenos Aires, City of Helsinki, City of Las Vegas, City of Paris, City of San Francisco, City of Stockholm, City of Vancouver, Göteborgs Stad, Greater London Authority, Kyoto, La Paz, Municipalidad de Santiago, New York City, Prefeitura do Rio de Janeiro, Stadt Zürich, The Executive Council, Govt of Dubai, and Ville de Nyon.