Is it true that we are heading toward global warming? And if so, what is the time frame? What will be the consequences on our lives and those of our children and grandchildren? This book will help readers understand the physical phenomena that make up the Earths climate, as well as the possible consequences of the natural and human alterations which have been inflicted on it. It also makes a plea for a concerted effort on a global scale. Jean-Louis Fellous currently heads ocean exploration for Ifremer (Institut français de recherche pour lexploitation de la mer).