carbon dioxide
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carbon dioxide
A colorless and odorless gas (chemical formula CO₂) that is produced during the combustion of carbon-containing materials and during respiration. It is a natural component of air and an important greenhouse gas.
Der Ausstoß von Kohlendioxid muss reduziert werden, um den Klimawandel zu verlangsamen.
Carbon dioxide emissions must be reduced in order to slow climate change.
The word is made up of 'Kohle' (coal/carbon) and 'Dioxid' (dioxide). 'Kohle' refers to 'Kohlenstoff' (carbon), the main component. 'Dioxid' is an international technical term for a compound with two oxygen atoms.
Pflanzen nehmen Kohlendioxid aus der Luft auf.
Plants absorb carbon dioxide from the air.
In the context of climate change, 'Kohlendioxid' (carbon dioxide) is often combined with certain verbs and nouns, for example 'der Ausstoß von Kohlendioxid' (carbon dioxide emissions), 'Kohlendioxid-Emissionen' (carbon dioxide emissions), or 'Kohlendioxid reduzieren/vermeiden' (to reduce/avoid carbon dioxide).
Viele Länder haben sich verpflichtet, ihren Kohlendioxid-Ausstoß zu reduzieren.
Many countries have committed to reducing their carbon dioxide emissions.
In scientific texts, but also in the news, the chemical formula 'CO₂' is often used instead of the full word 'Kohlendioxid' (carbon dioxide). Both terms are interchangeable.
Der CO₂-Gehalt in der Atmosphäre steigt weiter an.
The CO₂ level in the atmosphere continues to rise.
oxygen
'Sauerstoff' and 'Kohlendioxid' both have to do with air and breathing. That is why they are sometimes confused. 'Sauerstoff' is the gas that humans and many animals breathe in and need in order to live. 'Kohlendioxid' is produced, for example, when we breathe out and during combustion. It is also a greenhouse gas. Put simply: when we breathe, we take in oxygen and give off carbon dioxide. In texts about climate or fire, 'Kohlendioxid' is often more precise.
Beim Ausatmen geben wir Kohlendioxid an die Luft ab.
When we breathe out, we release carbon dioxide into the air.
Beim Wandern in den Bergen merkt Sofia, dass ihr weniger Sauerstoff zur Verfügung steht.
While hiking in the mountains, Sofia notices that less oxygen is available to her.