00000nas##2200000za#4500 9.507812 CaOODSP 20200325094849 cr ||||||||||| 150406c1999||||xxc|| p o||||f| |0eng|d CaOODSP eng n-cn--- En81-21E-PDF Canada. Environment Canada. Greenhouse Gas Division. Canada's greenhouse gas inventory, overview : [electronic resource] GHG trends information from Environment Canada's Greenhouse Gas Division Ottawa - Ontario : Environment Canada. Annual 1990/1999--1990/2003 Greenhouse gases gcpds Inventaire canadien des gaz à effet de serre, faits saillants : (CaOODSP)9.504192