ames Lovelock : independent scientist, environmentalist, author and researcher, Doctor Honoris Causa of several universities throughout the world, he is considered since several decades as a one of the main ideological leaders, if not the main one, in the history of the development of environmental awareness. James Lovelock is still today one of the main authors in the environmental field. He is the author of " The GaiaTheory ", and " The Ages of Gaia ", which consider the planet Earth as a self-regulated living being, as well as his "Homage to GAIA", an autobiography published in september 2000. More recently, professor Lovelock published his new book, " The Revenge of Gaia ".