Good ecologist, as it defined, Pierre Aguesse retraces the life of our planet in time, the continent emerged, meteorology, life and finally in human life. There is then no need to be a graduate to understand that up to think that man can influence the climate and above all that it can keep as it is today is only pretense. It also shows how some authors play with statistics to make them say what they want. A good and short book if you do not want to be abused by those who want you to blame climate change.