Main page:


Web apps

for the

Extended Smooth Pathway Model (ESPM)

Calculation of Paris-compatible emission paths and emission targets

The ESPM consists of two calculation steps:
(here is a brief background paper on the ESPM)

1.   Determination of a national budget.

2.   Derive plausible emission pathways that adhere to this budget.

web app



all countries

web address

applicable to

any geographical or other unit


With the help of an Excel tool that can be downloaded from zenodo here, national budgets can be calculated for all countries in the world using a weighting model (see description "step 1" below). These national budgets can then be used in our universal web app. Which emissions are covered depends on the database used.

which emissions

freely specifiable

all CO2 emissions
(including land-use change)

step 1:

The user must set the budget himself without assistance.

To derive a national budget from a predefined global budget,
a weighting model is offered that takes into account the country's share of the world population and of global emissions.

step 2:

To calculate the emission paths, the tools use the Regensburg Model Scenario Types (here is a brief description). These scenario types represent the entire range of plausible emission paths. Which scenario type makes sense in each case must be decided scientifically based on an overall climate policy view.

Excel tool
with additional features; download from zenodo

published paper
calculating Paris-compatible emission paths and targets

EU  /  Germany

six largest emitters

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Automatisch generierte Beschreibung     

Ein Bild, das Text enthält.

Automatisch generierte Beschreibung