Coûts d’opportunité de construction des infrastructures routières et ferroviaires en Aquitaine pour la période 2007–2013 sous contrainte du Plan climat régional

The French Aquitaine region has implemented a climate plan to avoid 2,883 ktCO₂eq for 2007–2013. Although this region reduced its greenhouse gas (GHG) emissions by 1,119 ktCO₂eq between 1990 and 2005 (from 24,061 ktCO₂eq to 22,942 ktCO₂eq), GHG emissions of transports sector has increased by 762 ktCO₂eq. During the climate plan period, the region will implement projects of road and rail infrastructures construction in order to absorb the foreseen increase of traffic. These projects will contribute to economic development, but they also will provoke additional GHG emissions. But, the existence of a climate plan requires offsetting these GHG emissions. A maximum amount of budget will be determined in order to implement some projects to offset GHG emissions from road and rail projects. This budget will be equal to opportunity costs of road and rail projects. Input-output analysis will be used to carry out these calculations. Its interest is to incorporate the complexity of interindustrial trade with a detailed sectored study.