| LIVEONAIR | Exist without anything else other than Nitrogen, Oxygen, Carbon Dioxide and Argon mostly? It's not recorded! (4,2,3) |
| ABALONE | Seafood sailor has without anything else |
| ALONE | Ale on display without anything else |
| CYANATE | An anion of one oxygen, carbon, and nitrogen atom |
| AIRCRAFT | Contains a lot of oxygen, carbon and a large amount of something else? Presumably this will go over your heads! (8) |
| LEUKOCYTE | Strange clue: "Oxygen, carbon, and tritium found in the old white corpuscle' (9) |
| ATMOSPHERE | Earth's gravity-bound life-supporting blanket of gases comprising nitrogen, oxygen, argon and carbon dioxide (10) |
| FOSSILFUEL | The name for a carbon-containing energy source that produces carbon dioxide and other greenhouse gases when it is burned. |
| AIR | Gas mainly composed of nitrogen, oxygen and argon |
| SODALIME | White granular mixture of calcium hydroxide and sodium hydroxide that absorbs carbon dioxide and water vapour (4,4) |
| GLOBALWARMING | Phenomenon associated with the production of carbon dioxide and other activities that has resulted in the increase of average air temperatures near Earth's surface over the past one to two centuries. |
| GREENHOUSE | Gases such as carbon dioxide and methane (10) |
| HEAT | Bed bugs come out at night when the lure of Carbon dioxide and our ___ is too much to handle |
| GREENHOUSEGASES | Carbon dioxide and methane |
| ACIDRAIN | Precipitation that contains a high concentration of pollutants, chiefly sulphur dioxide and nitrogen oxide |
| NONE | Bugger all nitrogen, oxygen and neon (4) |
| EXHAUST | System in a petrol/diesel vehicle from which CO2 and other gases are expelled and released into the atmosphere (7) |
| WELLAWARE | Certainly knowing setter and solver exist without barrier being put up (4,5) |
| GREYAREA | New Year's Jumbo, briefly, without anything badly defined? |
| BEATHOLLOW | Run rings around a policeman's round without anything inside (4,6) |
