Go back two hundred years
The carbon cycle has been occurring for four billion years. Plants take carbon from the air and store it in themselves. When the plants die the carbon is either composted or trapped underground to become coal. Animals take carbon from plants and become oil in death.
As a result the level of carbon dioxide is the air has been steadily decreasing since life started to flourish.
Present day
We are putting all the carbon back in the air.
Perhaps a good way to explain the complex phenomenon of global warming is just to say we are turning back the clock, rapidly. The earth will find it’s equilibrium again but it might be a bumpy ride.
Filed under: Global Warming | Tagged: Coal, Global Warming, greenhouse effect, oil |
GROG: green tech blog 
That carbon cycle as you put it is the main reason people need to become more aware of green options. If we show a heavy support of non-combustion engine types (solar, hydrogen, etc.) we could help influence those corporations who do produce typical combustion type engines to see that we want green engines, not carbon producing ones.