1/  Mobility includes all individual travel, whether daily or occasional. Indeed, we use transport every day, whether individual or collective, for various reasons (professional life, private life, vacations, etc…).

2/ With 21% of global greenhouse gas emissions and 22% of the European Union's emissions, transports represents the first source of emissions. Private cars are the primary mode of daily transports for nearly ¾ of the French population. However, a 5 km car journey already emits more than 1 kg of CO2eq.

3/ When it comes to mobility, the stake of carbon footprint and its effects on climate is crucial. Added to this there are the health issues linked to air pollution, the impact on natural environments (land reclamation, damage to flora and fauna, changes to aquatic environments) or also the noise pollution due to our travels.

4/ Mobility is essential in our daily life. Nevertheless, according to l’ADEME, most of our journeys are less than 5km. To make these, there are alternatives (bike, public transportation, walk…) more respectful of the environment and health. It is this sustainable mobility, sometimes called “soft”, that is promoted in these challenges. Finally, another contemporary issue to deal with is ‘over-mobility” that brings us to reflect on an excess of travel both in number and distance.