What is all the fuss about – carbon dioxide emissions by source – a very simple guide

It is very hard to be accurate because no one has a measuring stick that is large enough, by the planet earth is in a constant state of emitting carbon dioxide – from natural combustion, volcanoes, respiration of animals, land disturbance and by simple release from the oceans (which also absorb carbon dioxide). Mankind (or would it be more correct to say humanity) is responsible for somewhere between 3% and 5% of annual worldwide carbon dioxide emissions.

Why then, should we be worried about anthropogenic emissions of carbon dioxide which most scientists hold to blame for the rapid recent global warming and their expected future global warming? Continue reading