Carbon Cycle
The flux of carbon from one area to another is the basis for the carbon cycle.
![](http://www.ei.lehigh.edu/learners/cc/carbon/carbonCycle_thumb.png)
The black text highlights various carbon reservoirs and the numbers indicate how many GigaTons (GtC) of carbon is stored there. The dark blue text shows carbon flux. The arrows show which way the carbon moves and the numbers detail how many GigaTons of carbon move annually.