| GREENHOUSE | Gases such as carbon dioxide and methane (10) |
| KIPP | Dutch chemist/pharmacist who invented an elaborate piece of laboratory glassware for the development of gases, such as carbon dioxide or hydrogen sulphide (4) |
| GREENHOUSEGASES | E.g. carbon dioxide and methane (10,5) |
| FOSSILFUEL | The name for a carbon-containing energy source that produces carbon dioxide and other greenhouse gases when it is burned. |
| GREENHOUSEGAS | Chemical agent such as carbon dioxide leads to flatulence in hothouse (10,3) |
| GAS | A state of matter such as carbon dioxide, neon or oxygen (3) |
| GASTROPODS | They move slowly as carbon monoxide perhaps drops to ground (10) |
| RARE | The inert gases, such as neon and xenon, are also called -gases (4) |
| RAREGASES | Inert gases such as neon, xenon, helium etc (4,5) |
| INERT | How we still describe gases such as krypton, neon or argon |
| SODALIME | White granular mixture of calcium hydroxide and sodium hydroxide that absorbs carbon dioxide and water vapour (4,4) |
| HEAT | Bed bugs come out at night when the lure of Carbon dioxide and our ___ is too much to handle |
| 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. |
| ACIDRAIN | Precipitation polluted by sulphur dioxide and other gases (4,4) |
| ONCE | As soon as carbon is seen in the unit (4) |
| EXHAUST | System in a petrol/diesel vehicle from which CO2 and other gases are expelled and released into the atmosphere (7) |
| COLIC | Internal disorder from oil as carbon copy around |
| GASSES | Hydrogen and methane (Var.) |
| GASES | Butane and methane, for two |
| NEPTUNE | Planet whose blue colour derives from its gaseous atmosphere of helium, hydrogen and methane (7) |
