Erasmus+ programme enables us to have amazing learning adventures with inspirational people from different countries. However, each of our personal gatherings contributes to a deep carbon footprint due to our travelling and living habits. The purpose of this project was to offset our carbon footprint on the projects we make by bringing more awareness and more action to change our habits. For this reason, we have created a carbon footprint calculator that is specialized for Erasmus + projects such as youth exchanges, training courses, meetings etc. This calculator offers the final number of the CO2 produced by each participant and transforms this number to the number of the average trees that will absorb our CO2 in their lifetime. Our calculations are based on scientific research done by different professionals. We did not make our own calculations.