Des centaines de millions d'hectares de terres,sont menacées de dégradation selon un rapport de l'ONU - UNEP | Sustain Our Earth |

Davos (Switzerland) January 24, 2014 - Up to 849 million hectares of natural land - almost the size of Brazil - will likely be degraded by 2050 if current trends to their unsustainable use continues, warns a report of the United Nations Environment Programme (UNEP).

Via Génération en action , Frédéric Liégeois