Thus it plays a major role in the Earth's carbon cycle.
It is thus a major component of the carbon cycle.
The main object of the group has been to fully understand the carbon cycle.
He has published research on the carbon cycle of the ocean and the sea floor.
Thus, the net effect on the global carbon cycle is small, but every little bit helps.
Changes in primary production can impact not only the carbon cycle, but also the climate system.
On Earth, carbon cycles through the atmosphere and the planet itself.
See the diagram for a detailed look at the carbon cycle.
Even today they are important in the carbon cycle and microbial food web.
What is the response of the carbon cycle to human perturbations?