|Consideration of the carbon cycle raises some fundamental
questions. Does division of the cycle into “human” and “natural” components
tend to excessively focus on fossil fuel use as the “problem”? There is reason to think so.
|A recent paper
addressed human influence on climate
through the development of agriculture. The author concluded humans began to
influence climate nearly 8000 years ago.
10 to 15% of land – and we control forests. We appropriate about 40% of plant
| It follows that we are responsible for 24
billion tonnes of the 60 billion tonnes of carbon absorbed by plants
annually. Contrast that with the 6 billion tonnes from fossil fuels.
the carbon cycle suggests opportunities to better integrate our energy use
with management of carbon.