| Greenhouse Gases | Aerosols | Other |
| CO2, CH4, N2O, CFC11, CFC12, CFC113, CFC114, CFC115, CCl4, CH3CCl3, HCFC22, HCFC141b, HCFC123, HCFC124, HCFC142b, HCFC225ca, HCFC225cb, HCFC134a, HCFC125, HCFC152a, CF4, C2F6, SF6, H1211, H1301, H2402, CH3Br, HFC23, HFC143a, HFC32, HFC227, HFC245, C6F14, Tropospheric O3 | SO2, Black carbon, Organic carbon | Solar irradiance variations, volcanoes, land-use changes |