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Science3 septembre 2015
© ReutersL'arbre qui cache la forêt
La Terre a perdu près de la moitié de ses arbres depuis l'apparition de l'homme
La revue scientifique Nature a comptabilisé pour la première fois plus de 3000 milliards d'arbres sur Terre mais ce nombre reste très insuffisant pour compenser l'impact du réchauffement climatique.
