| VAPOUR | Water in the atmosphere |
| ACIDRAIN | Inca raid (anag) - it's a combination of industrial gas emissions with water in the atmosphere (4,4) |
| BLUE | Colour of the daytime sky as a result of the process named after physicist Lord Rayleigh in which molecules in the atmosphere cause white light to "scatter" (4) |
| CLIMATECHANGE | The periodic modification of Earth's climate resulting from changes in the atmosphere as well as interactions between the atmosphere and various other geologic, chemical, biological, and geographic fa |
| HAZE | Reduced visibility in the air as a result of water vapour or dust in the atmosphere (4) |
| RAIN | Water falling in drops from vapor condensed in the atmosphere. |
| NEON | Inert gas in the atmosphere that gives an orange glow when electricity is passed through it / used in lights and in illuminated ads |
| RAINBOW | Spectrum of colours caused by the suns light reflected and refracted through water droplets in the atmosphere (7) |
| CLOUD | Visible mass of watery vapor floating in the atmosphere high above the general level of the ground |
| HALO | Bright circle around the sun or moon caused by the refraction or reflection of light by ice crystals in the atmosphere (4) |
| GLOBALWARMING | Gradual rise in the earth's temperature from high levels of carbon dioxide in the atmosphere (6,7) |
| SNOW | The solid form of water that crystallizes in the atmosphere and falls to Earth (4) |
| SUNDOG | Depicted in a drawing by John Sell Cotman, a parhelion on the solar halo as a result of diffraction of light by ice crystals in the atmosphere (6) |
| NITROGEN | Minor flaw with Seth in "The Interview": something in the atmosphere (8) |
| STEAM | Water at boiling temperature diffused in the atmosphere |
| DROPS | "She's back in the atmosphere with ___ of Jupiter in her hair" |
| OZONEHOLE | Depleted layer in the atmosphere near the poles (5,4) |
| CAIRO | City with carbon monoxide in the atmosphere? On the contrary (5) |
| ARGON | An inert gas which exists in very small amounts in the atmosphere (5) |
| BREATHE | The bear turned around to take in the atmosphere (7) |
