Web app Regensburg Model:
Calculation of Paris-compatible emission paths with converging per capita emissions

In the Regensburg Model, national emission paths are derived from a global emission path using the Regensburg Formula which leads to converging per capita emissions.

In the Regensburg Model, six scenario types (RM 1 - 6) are offered to derive global emission paths that adhere to a predefined CO2 budget. Here is a brief description of the scenario types.

Important framework data in the following web app (these can be freely set in the detailed Excel tool; see below):

► Global CO2 budget 2020 - 2100: 400 Gt

► Minimum global emissions by 2100: -0.7 Gt

► Convergence level: 0.5 t per capita

When you select a country, you can see the resulting emission paths, reference values and other key figures.

In the corresponding tab you can see the underlayed global paths.

Note: The emission paths cover CO2 emissions from fossil fuel use (excluding international shipping and aviation; ISA) and cement production. ISA and land-use change (LUC) are therefore not covered. Budgets are reserved for these two fractions at the global level.

Detailed Excel tool

You can download the detailed Excel tool at: https://doi.org/10.5281/zenodo.5846043.

Here are the instructions for the Excel tool with further background information.

Some publications on the Regensburg Model

► The Regensburg Model: reference values for the (I)NDCs based on converging per capita emissions, journal 'climate policy', Download; published 2016
► Calculation of Paris-compatible emission targets for the six largest emitters with the Regensburg Model, 2022, Download; published on Zenodo

Global remaing CO2 budgets

Here are key statements by the IPCC on remaining global CO2 budgets.

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