L’une des menaces pour les années à venir, face au changement climatique, est la sécheresse. Que sait-on du phénomène ? Quels sont les facteurs jouant un rôle sur ses effets notamment sur les arbres, les forêts ? A quoi peut-on s’attendre ? Il y a beaucoup d’interrogations. Un numéro récent de Science (sorti le 17 avril 2020) est dédié à cette thématique. Petite revue de presse ! Ce que nous disent les cernes des arbres Les cernes des arbres, ces cercles concentriques sur la section transversale du tronc, on le sait, servent à déterminer leur âge. Mais savez-vous qu’on peut y lire bien plus que cela ? C’est l’objet du livre de Valérie Trouet « Tree Story : The History of the World Written
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