At the origin of life. A l'origine du vivant

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Biegala, Isabelle C.

Edité par CCSD ; Fonds français pour l’environnement mondial (FFEM) -

International audience. There have been close interactions between the Earth's climate and living organisms since the very beginning. By studying the history of life on Earth, we understand that the atmosphere probably created it and that living organisms have constantly modified this atmosphere in response to the selection pressures resulting from the major transitions that the Earth has undergone. Living organisms have adapted to disturbances by stabilising themselves through specialisation and organisation. . Il existe des interactions étroites entre le climat terrestre et le vivant et ceci depuis les origines. En étudiant l’histoire de la vie sur Terre, on comprend que l’atmosphère l’a probablement créée et que le vivant n’a pas cessé de modifier cette atmosphère en réaction aux pressions de sélection issues des grandes transitions qu’a subie la Terre. Le vivant s’est adapté aux perturbations en se stabilisant grâce à la spécialisation et à l’organisation.

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