Carbon Dioxide Emissions Calculated by the Model (image) Max-Planck-Gesellschaft Share Print E-Mail Caption The evolution of the carbon dioxide emissions was calculated by the model (left) and the temporal development of the global mean annual temperature (right). In order to achieve the long-term stabilization of the atmospheric carbon dioxide concentration, fossil carbon dioxide emissions must be reduced to around zero by the end of the century. The black lines represent the observed values. (GtC/year = gigatons carbon/year) Credit Max Planck Institute for Meteorology Usage Restrictions This images may only be used or reproduced for editorial purposes and in connection with scientific articles on our press material, in which case such usage or reproduction is free of charge and requires no permission. Any other use, in particular for commercial purposes, requires prior permission of the author or photographer. Further enquires can be answered in the Press and Public Relations Office. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.