Translated to English by Elisabeth Huffer
Climate scientists widely agree with the claim that climate warming is under way ; this warming is mainly due to man-made greenhouse gas emissions ; it may have significant impacts that would be harmful to humanity. A large majority of the population believes that this triple diagnosis is true. However, the agreement is not unanimous; renowned individuals, usually working in fields other than climate science, argue that human activities have no impact on the climate, some going so far as to deny that there is any climate warming at all. These judgments and denials enjoy some success amongst the audiences and readers of these individuals. We purport to present synthetic answers to the arguments that are most often put forward. We have grouped them within four topics.