Atmospheric CO2

Definition

Atmospheric CO2 refers to the concentration of carbon dioxide gas in Earth's atmosphere. It is a greenhouse gas that contributes to global warming and climate change.

Related terms

Greenhouse Effect:

The process by which certain gases, including CO2, trap heat in Earth's atmosphere like a greenhouse.

Carbon Cycle:

The natural cycle through which carbon is exchanged between living organisms, the atmosphere, oceans, and rocks.

Fossil Fuels:

Non-renewable energy sources formed from ancient organic matter (such as coal, oil, and natural gas) that release CO2 when burned.