In the context of growing concerns for climate change, the objective of this dissertation is to bring some insights on two environmental issues. The first one deals with the question of whether environmental policies are efficient enough to significantly decrease greenhouse gases emissions and energy consumption and the second one concerns the way households’ well-being is affected by environmental changes. France committed to reduce greenhouse gases emissions and energy consumption in residential sector. In a first time, we study the determinants of residential energyconsumption in France. An in-depth understanding of energy consumption is needed to design adequate energy policies and achieve a low-car...