The app is based on the distribution of a global CO2 budget with a weighted key that takes into account a country's share of the world's population and of global emissions in the base year 2019. Thus, the distribution key reflects the current reality and climate justice (on the fundamental question of a distribution key for a global budget, see the corresponding excursus in this paper).
In addition to CO2 budgets, emission targets are shown based on linear emission paths.
These three central framework data can be specified in this web app:
The EDGAR database is used for all countries in the world. For the EU and the EU member states, the use of EEA data is also offered. If you select "Global", the emissions data from the Global Carbon Project will be applied.
Further sheets:
The cells marked in yellow are input fields. Guidance and background information for the tool here.
Please note: If you download this Excel tool as a copy, you can save entries for yourself. In addition, you can then print out the results for all countries or have a corresponding PDF created. We will be pleased to send you a non-read-only version on request (save-the-climate@online.ms).
Mobile version of this tool: http://m.national-budgets.climate-calculator.info.
Short version of this tool: http://short.national-budgets.climate-calculator.info.
You can download a detailed Excel tool for calculating Paris-compatible CO2 budgets for all countries in the world: https://doi.org/10.5281/zenodo.5837866. In this tool, for example, you can choose to distribute the global budget from 2016 instead of 2020.
From an overall climate policy perspective, emission paths other than linear ones may make more sense. Therefore, we offer tools that cover the entire range of plausible emission paths:
We refer to the procedure of deriving a national CO2 budget from a global CO2 budget and deriving plausible national emission paths that adhere to the national CO2 budget as the Extended Smooth Pathway Model (ESPM). Here a brief description of the ESPM.