| Based on concentrations (ppb) adjusted for heat retention characteristics | Percent of Total | Percent of total - ajusted for water vapor |
| Water Vapor (H20) | --- | 95.000% |
| Carbon Dioxide (CO2) | 72.369% | 3.618% |
| Methane (CH4) | 7.100% | 0.360% |
| Nitrous oxide (N2O) | 19.000% | 0.950% |
| CFC + Other gases | 1.432% | 0.072% |
| Total | 100% | 100% |

