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

in planning

applicable to

any geographical or other unit


contains a database for
all countries of the world

which emissions

freely specifiable

all CO2 emissions
(including land use change)

CO2 emissions from fossil fuel use
and cement production
(excluding international shipping and aviation)

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


six largest emitters

Ein Bild, das Text enthält.

Automatisch generierte Beschreibung

Ein Bild, das Text enthält.

Automatisch generierte Beschreibung