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Revue de presse et du net par le Pôle de partage des connaissances S&T de l'Office français de la biodiversité
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Rahui i Huahine : consolidation des Rahui, système traditionnel de gestion des ressources marines, dans le lagon de Huahine

Rahui i Huahine : consolidation des Rahui, système traditionnel de gestion des ressources marines, dans le lagon de Huahine | Biodiversité | Scoop.it

Le programme Te Me Um a choisi de soutenir le micro-projet de l’association polynésienne A Ti'a Matairea. Ce micro-projet avait pour objectif initial de renforcer les réglementations de pêche existantes par la création de zones de pêche réglementées (ZPR) ainsi que...

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Rapport Rahui I Huahine

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Importance and vulnerability of the world’s water towers

Mountains are the water towers of the world, supplying a substantial part of both natural and anthropogenic water demands1,2. They are highly sensitive and prone to climate change3,4, yet their importance and vulnerability have not been quantified at the global scale. Here, we present a global Water Tower Index, which ranks all water towers in terms of their water-supplying role and the downstream dependence of ecosystems and society. For each tower, we assess its vulnerability related to water stress, governance, hydropolitical tension and future climatic and socio-economic changes. We conclude that the most important water towers are also among the most vulnerable, and that climatic and socio-economic changes will affect them profoundly. This could negatively impact 1.9 billion people living in (0.3 billion) or directly downstream of (1.6 billion) mountain areas. Immediate action is required to safeguard the future of the world’s most important and vulnerable water towers.
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Citation : Immerzeel, W.W., Lutz, A.F., Andrade, M. et al. Importance and vulnerability of the world’s water towers. Nature (2019) doi:10.1038/s41586-019-1822-y

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Media Release: Biodiversity and Nature's Contributions to People Continue Dangerous Decline, Undermining Well-Being of 3.2 Billion People - IPBES

Media Release: Biodiversity and Nature's Contributions to People Continue Dangerous Decline, Undermining Well-Being of 3.2 Billion People - IPBES | Biodiversité | Scoop.it
Worsening land degradation caused by human activities is undermining the well-being of two fifths of humanity, driving species extinctions and intensifying climate change. It is also a major contributor to mass human migration and increased conflict, according to the world’s first comprehensive evidence-based assessment of land degradation and restoration. The dangers of land degradation, which cost the equivalent of about 10% of the world’s annual gross product in 2010 through the loss of biodiversity and ecosystem services, are detailed for policymakers, together with a catalogue of corrective options, in the three-year assessment report by more than 100 leading experts from 45 countries, launched today.
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What is the IPBES Assessment of Land Degradation & Restoration? https://www.youtube.com/watch?v=JJbXa0Ne2kY&index=1&list=PLwejzi-9gkEgJxDY1151CgY-SCPXRWT59
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Five things the world is saying about ecosystem restoration

Five things the world is saying about ecosystem restoration | Biodiversité | Scoop.it
UNEP has conducted a survey of users of the UN Decade on Ecosystem Restoration’s website to help shape engagement opportunities and communication tools for the UN Decade ahead of its public launch during World Environment Day 2021.
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2,000 personnes, dans 140 pays ont répondu à une enquête sur la restauration des écosystèmes? cet article en présente les résultats majeurs.

Voir aussi https://www.decadeonrestoration.org/fr

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Face à la pénurie, l'Entente pour l'eau lance quatre appels à projets

Face à la pénurie, l'Entente pour l'eau lance quatre appels à projets | Biodiversité | Scoop.it
L'Entente pour l'eau, qui regroupe la Région Occitanie, la Région Nouvelle-Aquitaine et l'Agence de l'eau Adour-Garonne, a annoncé le lancement de quatre appels à projets pour répondre à la problématique du manque d'eau. La Garonne pourrait se retrouver à sec d'ici 2070.
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La région Occitanie possède la progression démographique la plus forte de France. 50 000 nouveaux habitants arrivent chaque année. Comment garantir et gérer la ressource en eau ? via @LaTribuneTlse

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