carbon dioxide
das CO₂
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carbon dioxide
A colorless, odorless gas made of carbon and oxygen. It is produced, among other ways, through combustion and exhalation, and is an important part of the natural carbon cycle.
Pflanzen nehmen das CO₂ aus der Luft auf und wandeln es mithilfe von Licht in energiereiche Stoffe um.
Plants absorb CO₂ from the air and use light to convert it into energy-rich substances.
| gender | neuter das |
|---|---|
| genitive | des CO₂ |
| singular | plural | |
|---|---|---|
| nominative | das CO₂ | – |
| accusative | das CO₂ | – |
| dative | dem CO₂ | – |
| genitive | des CO₂ des CO₂s | – |
The article changes with the case; it is shown in colour.
'CO₂' consists of the symbol 'C' for carbon and 'O' for oxygen. The subscript two indicates that a molecule contains two oxygen atoms.
Bei der Verbrennung fossiler Brennstoffe entsteht CO₂.
CO₂ is produced when fossil fuels are burned.
Common expressions with 'CO₂' include 'CO₂ ausstoßen' (to emit CO₂), 'CO₂ aufnehmen' (to absorb CO₂), 'CO₂-Emissionen' (CO₂ emissions), and 'CO₂-Konzentration' (CO₂ concentration). The term therefore often appears in texts about energy, transport, climate, and plants.
Die neue Anlage soll deutlich weniger CO₂ ausstoßen.
The new facility is intended to emit significantly less CO₂.
'CO₂' is especially common in scientific, technical, and environmental texts. In everyday life, it is often associated with emissions from transportation or industry and with the concentration in the atmosphere.
Wissenschaftler messen regelmäßig die CO₂-Konzentration in der Atmosphäre.
Scientists regularly measure the CO₂ concentration in the atmosphere.
