2. Launching the study

ADEME's Bilan Carbone ^® takes into account emissions of the six greenhouse gases (GHG) covered by the Kyoto Protocol, namely :

• carbon dioxide (CO ₂ ) ;

• methane (CH ₄ ) ;

• nitrous oxide (or nitrous protoxide, N ₂ O);

• hydrofluorocarbons (HFCs) ;

• perfluorocarbons (PFCs) ;

• sulfur hexafluoride (SF _...