To limit global warming and respect the Paris Agreement, the average carbon footprint of a French person must be two tons per year in 2025. To find out how to calculate and limit this indicator, columnist Perrine Brami presents the Ademe simulator in "Bienfait pour vous" This indicator measures the amount of greenhouse gases that each individual emits, such as food, travel or shelter.

The calculation is then converted to carbon equivalent to make it more readable. To achieve the famous objective of two tons, a citizen could not emit more than 300 kg of CO2 equivalent per year.