Request an estimation of your travel footprint

First Name

Fill these to say hello.

Last Name

We will never share your data with anyone.

Institution / Enterprise

Origin Cities *

Use en_US city and country names, without diacritics.
The comma matters.
This is either a home city and a country or the cities and countries of the participants to the conference, meeting…

Origin Cities *

If you provide a file, we'll use it instead of the list on the left.
The spreadsheet's first sheet must have an Address column, or a City and Country columns.
Example CSV ⋅ Example XLS

Destination Cities *

This is either the cities and countries to travel to or the host city and country of the conference, meeting…
Please provide multiple cities and countries to compute the location of the minimum emission.

Destination Cities *

Need inspiration? Look at the airports in Africa, Asia, Europe, North America, Oceania, South America, or all of them.

Emission Models to consider

Atmosfair (mul. factor=3 for altitude > 9 km, not recommended)

ADEME (2021, with trail impacts)

MYCLIMATE (mul. factor=2)

DEFRA (2023, with radiative forcing)

ADEME (2021, without the trail impacts, not recommended)

KLM data best fit (no mul. factor, not recommended)

ICAO data best fit (no mul. factor, not recommended)

We will use a mean of the selected models. Please select at least one.
The meaning of RFI is detailed here .

Use train below *

For (single) trips below this distance, we'll ignore the plane models and use 23 g.km^-1.