This book gives an overview of the main ecological challenges french simple manner, with a page of text and references to reference books on one side and an illustration of another page., Each of the topics that may give rise to entire books the idea of this book is not to go into details of each topic but rather to introduce them, to put them in mind and make them want to go away with other readings. It is a reference book that lists the sad list of current ecological fights. The drawing is not very late in style but still remains relevant and brings lightness because if the results are often bad optimism remains the watchword and the fight is serious but with the sourrire. This book should go even further by exceeding the borders even involve authors and activists from other countries. Perhaps a sequel?