Calculate the impact of your event

The key stakeholders of the Paris destination and its region are working together to increase the contribution of events to the region and measure their positive impact on the local ecosystem, their economic spin-offs, their environmental performance and their legacy.

Cleo ICleo Impact is a new-generation calculator, available free of charge to organizers of national and international events for professionals and the general public (sport and culture).
With this tool, it's possible to do more than make an environmental assessment. Understanding the footprint left by an event also makes it possible to identify the positive impacts it leaves on the host region. How can we support increasingly sustainable events and measure the benefits for the local ecosystem, in line with the destination's values? Whether the legacy is socio-cultural or based on the sharing of knowledge, it plays a key role in raising the profile of Paris and its region, contributing to the vitality of the local economic fabric.
To fulfil these objectives, Cleo Impact calculates the carbon footprint (e.g. energy and transport), the economic benefits (direct and indirect) and the legacy left by your event to its host region (infrastructure or social contributions).

Cleo Impact's intuitive, easy-to-use features have been developed to help you quickly assess the impact of your event, by providing you with concrete indicators. The results can then be used to identify areas for improvement and encourage collaboration with all stakeholders, in terms of both sustainability and visitor experience.

A three-part assessment

Cleo Impact takes into account three main factors:

  1. Carbon footprint: The tool assesses emissions linked to various aspects of the event, including energy, transport, accommodation and waste management.
  2. Economic benefits (direct and indirect): The assessment takes into account expenditure generated by the event in the region, including catering, accommodation, purchasing and transport.
  3. Legacy: The frequency of the event in the area, the infrastructure put in place, the associated tourist activities and the impact on local industries.

How Cleo Impact works

The tool is available free of charge to event planners. There are several steps involved:

  1. Creation of an account: Registration or connection to an existing account.
  2. Creation of an event file: Entering general information such as country, type of event and date.
  3. Data entry: Adding information on the various impact categories (energy, transport, development, catering, accommodation, purchasing, communication, freight, waste). An option is available to apply data averages if information is not available.
  4. Consultation of results: The tool proposes several formats for data analysis: a shareable clickable link, a CSV file or a PDF file. Results can be consulted online and evaluated.

Access the tool

All in 3 minutes

Cleo Impact aims to cover the whole of France and propose recommendations and alternatives for ecological compensation. As a reminder, every year in Paris (pre-covid period), there are more than 800 congresses, 1,00,000 corporate events and 430 trade fairs, making the capital one of the leading cities for events and congresses. These events represent more than €15 billion in annual economic spin-offs for the Ile-de-France region.

In partnership with:
Logo Choose Paris Region
Logo Unimev

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