This document is a compilation of data on global change, including atmospheric carbon dioxide (CO₂) concentrations, CO₂ emissions from fossil fuel burning, cement production, and gas flaring, atmospheric methane (CH₄) concentrations, and temperature records. It provides a comprehensive overview of these data, including historical and modern records, as well as detailed discussions of trends and references to further information. The data are presented in a two-page format, with each page focusing on a different data set. The document is sponsored by the U.S. Department of Energy and includes contributions from various international organizations and researchers. The data are available in digital form from the Carbon Dioxide Information Analysis Center (CDIAC). The document includes detailed information on atmospheric CO₂ concentrations from ice cores, such as the Vostok and Siple stations, as well as modern records from various monitoring stations around the world. It also includes data on atmospheric methane concentrations and temperature records, providing a comprehensive view of global change. The document is intended to serve as a quick reference for important data on global change and is part of a series of publications by CDIAC. The data are presented in a clear and organized manner, with detailed explanations of trends and references to further information. The document is a valuable resource for researchers, policymakers, and students interested in global change.This document is a compilation of data on global change, including atmospheric carbon dioxide (CO₂) concentrations, CO₂ emissions from fossil fuel burning, cement production, and gas flaring, atmospheric methane (CH₄) concentrations, and temperature records. It provides a comprehensive overview of these data, including historical and modern records, as well as detailed discussions of trends and references to further information. The data are presented in a two-page format, with each page focusing on a different data set. The document is sponsored by the U.S. Department of Energy and includes contributions from various international organizations and researchers. The data are available in digital form from the Carbon Dioxide Information Analysis Center (CDIAC). The document includes detailed information on atmospheric CO₂ concentrations from ice cores, such as the Vostok and Siple stations, as well as modern records from various monitoring stations around the world. It also includes data on atmospheric methane concentrations and temperature records, providing a comprehensive view of global change. The document is intended to serve as a quick reference for important data on global change and is part of a series of publications by CDIAC. The data are presented in a clear and organized manner, with detailed explanations of trends and references to further information. The document is a valuable resource for researchers, policymakers, and students interested in global change.