The carbon cycle describes how carbon moves through the natural environment.
Plants take CO2 from the air, use the carbon in combination with water to make carbohydrates, and release oxygen to the atmosphere. When the plant dies, that carbon is released again as CO2. That release can be a result of decomposition, fire, or probably other means.
Right now, there is a relatively high concentration of CO2 in the atmosphere. I believe in anthropogenic climate change, so I think that high and increasing concentrations of CO2 are a result of burning of fossil fuels. In effect, we are adding carbon to the current carbon cycle. If it weren’t for humans, the vast majority of carbon in fossil fuels would remain buried and irrelevant.
Okay, I wrote the above without looking anything up, just using what was in my head.
(Looks at Wikipedia)
So I’m grossly over-simplifying and leaving out many aspects, but I’m not wrong. I think understanding the carbon cycle, even on a superficial level, clarifies what we need to do.
Ending and Beginning 
28 November 2013 at 11:23 pm
I agree with this. There are many theories and research that also prove that fossil fuel is the main cause. You can also read this new report that was publised in power technology site stating that many big companies are responsible for this including BP, Shell and Exxon Mobil, have been blamed for causing the climate change crisis in a new study carried out by the US-based Climate Accountability Institute.
But can we really blame climate change on fossil fuel providers alone – aren’t the public and government responsible too?
29 November 2013 at 9:07 am
No, I don’t blame big oil. For the last 200 years, ppl have been learning to exploit cheap fossil fuels. Big oil has been more of a partner than a villain in that, and will probably continue in that status as we transition to whatever’s next.
2 December 2013 at 3:07 am
Still there are options for cheap oil fuel that Government n private co an prefer it rather then just using things that are easily available to us