Oireachtas Joint and Select Committees

Tuesday, 26 September 2023

Joint Oireachtas Committee on Climate Action

Impact on Carbon Budgets of Trend Towards Heavier and Larger Vehicles: Discussion

Dr. Peter Mock:

I totally agree. It is not just the weight, as Mr. Nix has said, but also the size of the vehicles for pedestrians, cyclists and cities in general. They are typically not built for these big cars. Data on the size of vehicles are readily available. Maybe members will remember that a few years ago in Europe, we debated whether the CO2 regulation for passenger cars should be based on the mass of vehicles or on the size of vehicles. The idea was always the same, namely, the bigger or heavier the vehicle, the higher the CO2 emissions that should be allowed. That was the argument of the industry. In the end, the European Commission decided for weight. Since then, data have also been collected on the dimensions of the vehicle. The data are readily available.

I agree with Mr. Nix that it is unlikely that any regulation would go forward at a European level. However, if there were any fiscal measure at a national level to regulate the size of vehicles, that would be a possibility for sure.