Review greenhouse gases by identifying sources, explaining the greenhouse effect and evaluating persistence, global warming potential and climate impacts.
The diagram shows part of the carbon cycle.
Key
The numbers in smooth brackets ( ) show the mass of carbon in petagrams found in either the atmosphere, plants or surface ocean.
The numbers in square brackets [ ] show the mass of carbon in petagrams transferred between the atmosphere and the plants or surface ocean per year.
A petagram is equal to grams.
Anthropogenic climate change is a result of an increase in the mass of carbon in the atmosphere.
State what is meant by the term anthropogenic climate change.