Dyma oedd y ffigurau penodol ar gyfer pob nwy tŷ gwydr rhwng 1990 (1995 yn achos nwyon f) a 2009:gostyngiad o 19.3% mewn allyriadau CO2 (Carbon Deuocsid);gostyngiad o 45.7% mewn allyriadau CH4 (Methan);gostyngiad o 28.2% mewn allyriadau N2O (Ocsid Nitraidd);cynnydd o 580.8% mewn allyriadau HFC (Hydrofflworocarbonau);gostyngiad o 79.5% mewn PFC (Perfflworocarbonau);gostyngiad o 50.4% mewn SF6 (Sylffwr Hecsafflworid).
Specific figures for each greenhouse between 1990 (1995 for f-gases) and 2009 were as follows:CO2 (Carbon Dioxide) emissions reduced by 19.3%CH4 (Methane) emissions reduced by 45.7%N2O (Nitrous Oxide) emissions reduced by 28.2%HFC (Hydrofluorocarbons) emissions increased by 580.8%PFC (Perfluorocarbons) emissions reduced by 79.5%SF6 (Sulfur Hexafluoride) emissions reduced by 50.4%