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Les forêts à l’honneur de la Journée mondiale de l’environnement

Les forêts à l’honneur de la Journée mondiale de l’environnement
Dédiée cette année aux forêts, la Journée mondiale de l’environnement aura lieu ce dimanche

Organisée le 5 juin de chaque année depuis 1972 par le Programme des Nations Unies pour l’Environnement (PNUE), la Journée mondiale de l’environnement (JME) sera consacrée cette année au thème « Les forêts, la nature à votre service ».

Le PNUE a choisi l’Inde pour accueillir cette édition 2011, en reconnaissance de l’engagement croissant du pays sur le plan environnemental. A cinq jours de l’événement, le directeur exécutif du PNUE Achim Steiner s’est félicité que, « de plus en plus, (l’Inde soit) à la tête d’initiatives favorisant la transition vers une économie verte ».

Cette année ayant été proclamée « Année internationale des forêts » par l’Organisation des Nations Unies (ONU), c’est tout naturellement que la JME 2011 portera l’accent sur elle, et en ayant choisi l’Inde comme pays-hôte le PNUE a rendu hommage aux programmes lancés par New Delhi pour la préservation des réservoirs d’oxygène du pays, qui subissent pourtant une énorme pression socio-économique.

A l’occasion de cette Journée, le PNUE a voulu rappeler les fonctions vitales des forêts et insiste sur la nécessité de leur conservation. Couvrant 31% de la surface terrestre, capables d’absorber des grandes quantités de dioxyde de carbone (CO₂), les forêts sont à juste titre appelées les « poumons de la Terre ». Malgré leur importance capitale, 13 millions d’hectares de forêts (soit l’équivalent de la superficie du Portugal) sont pourtant détruits chaque année dans le monde. La déforestation et la dégradation des forêts sont ainsi responsables de près de 20% des émissions mondiales de gaz à effet de serre.

journée mondiale de l environnement sous le signe de la préservation des forêts

Les forêts au cœur de la préservation de l’environnement

On ne le répètera jamais assez mais leur sauvegarde est primordiale pour lutter contre le changement climatique mais aussi pour préserver les écosystèmes dans la mesure où elles accueillent 80% de la biodiversité terrestre.  Elles abritent également plus de 300 millions de personnes dans le monde et subviennent aux besoins d’1,6 milliard de personnes de par leurs nombreuses ressources naturelles dont le bois, le caoutchouc et les plantes médicinales. Leur diversité génétique permet en outre des progrès continus dans le domaine de la recherche scientifique et de la santé et notamment le développement de nouveaux médicaments.

Les forêts sont enfin essentielles à la préservation d’un autre élément indispensable à la survie : l’eau. Les bassins versants boisés fournissent en effet plus des trois quarts de l’eau douce accessible dans le monde. Or la déforestation et la dégradation des forêts ont un impact sur la qualité de l’eau, tout comme les catastrophes naturelles de type glissement de terrain et inondations.

Avec cette JME qui leur est dédiée, le PNUE appelle à ce que les forêts deviennent une priorité politique internationale. Des efforts de préservation ont déjà certes été entrepris, en particulier en Indonésie et au Congo, mais la situation dans ces pays demeure préoccupante. Quant à la forêt amazonienne, premier poumon d’oxygène de la planète, elle continue d’être allègrement déboisée et le nouveau code forestier que viennent d’adopter les députés brésiliens n’augure rien de bon aux dires des écologistes. Plusieurs initiatives individuelles peuvent aussi être prises pour contribuer à la protection des forêts. Les « tabacophiles » peuvent par exemple commencer par arrêter la cigarette. Et vous, comment allez-vous célébrer cette Journée mondiale de l’Environnement ?

Crédit photo : PNUE / flickr - Threat to Democracy
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  • hyper ecolo

    Nous, nous prenons un Copain des Bois et c’est parti pour Fontainebleau toute la journée ! :-)

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    Nous, en famille, nous avons créé un centre d’hébergement en forêt,au Québec, sur la commune de l’Anse de Roche au bord du fjord du Saguenay, par amour de la forêt, nous la partageons, canopee-lit.com.
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    Toute notre attention pour sa préservation, son entretien et sa régénération.

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