carbon cycle

Type: Concept

As of November 2026, carbon cycle has been mentioned in one podcast episode on Oxford Mathematics (Oct 2025). Part of the course's first section, discussing models of Earth's carbon cycle.

The carbon cycle is a part of the biogeochemical cycle where carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth. Other major biogeochemical cycles include the nitrogen cycle and the water cycle. Carbon is the main component of biological compounds as well as a major component of many rocks such as limestone. The carbon cycle comprises a sequence of events that are key to making Earth capable of sustaining life. It describes the movement of carbon