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UN-Water: Home

UN-Water: Home

http://www.unwater.org/

Related:  BiodiversitéGeografia dos Recursos Hídricos

Eco Preservation Society About EPS Osa - Get Involved in EPS Osa - Join EPS Osa The pristine rainforests and the rugged natural beauty of the Osa Peninsula make this region among the most beautiful areas in Costa Rica. Declared ‘one of the most biologically intense places on earth’ by the National Geographic Magazine, the Osa Peninsula along with Drake Bay have today, become the premier ecotourism destination in the county. The Osa Peninsula is a peninsula located in southwestern Costa Rica, in the Puntarenas Province, with the Pacific Ocean to the west and the Golfo Dulce to the east.

A chuva já resolveu a crise da água em SP? Veja perguntas e respostas - notícias em São Paulo Apesar da volta das chuvas nas primeiras semanas de novembro, o cenário do abastecimento de água em São Paulo para o futuro próximo ainda tem muitas incertezas. Os níveis dos reservatórios continuam muito distantes do que é considerado ideal. Reunimos aqui algumas dúvidas sobre a atual crise hídrica. Qual a razão da falta de chuva neste ano? O desmatamento na Amazônia contribuiu para seca? Houve falta de preparação para que não chegássemos ao quadro atual? Biodiversity Andean Páramo Project "or" PPA The project "Conservation of Biodiversity in the Moors of North and Central Andes, is a regional initiative that works to conserve and sustainable use of grasslands in Venezuela , Colombia, Ecuador and Peru. Food for the Future: Conserving Crop Wild Relatives As the name suggests, a crop wild relative (CWR) is a wild plant species related to a domesticated crop.

Mapa quantifica pela 1ª vez água escondida debaixo da terra no mundo O volume total de água armazenada no subsolo do planeta é estimado em 23 milhões de km³. Seria o suficiente para cobrir toda a superfície da Terra com uma camada de 180 metros de profundidade. Essa foi a conclusão de um estudo conduzido por pesquisadores canadenses e publicado na revista científica "Nature Geoscience". Mas apenas 6% dessa água é própria para consumo humano. Natura 2000 network - Environment Cookies This site uses cookies to offer you a better browsing experience. Find out more on how we use cookies and how you can change your settings. BfG - The GRDC This is the Global Runoff Data Centre, a repository for the world's river discharge data and associated metadata. GRDC stations with monthly data, indicated by time series end The GRDC is an international archive of data up to 200 years old, and fosters multinational and global long-term hydrological studies. Originally established two decades ago, the aim of the GRDC is to help earth scientists analyse global climate trends and assess environmental impacts and risks. Positioned as a facilitator for exchanges between data providers and data users, the GRDC has become a focal point for international cooperation.

Fondation Nicolas Hulot For the past 40 years I have been travelling the world, a witness to its slow destruction. I have decided to become a player in its reconstruction. To share my belief and my rallying call, I wrote Osons. 12 concrete propositions to the attention of the States and an appeal to everybody to put pressure on their decisions. Together, let’s call on the Heads of State to address the challenges posed by climate change. ICPDR - International Commission for the Protection of the Danube River ICPDR - International Commission for the Protection of the Danube River The International Commission for the Protection of the Danube River (ICPDR) is an International Organisation consisting of 14 cooperating states and the European Union. Since its establishment in 1998, the ICPDR has grown into one of the largest and most active international bodies of river basin management expertise in the World. The ICPDR deals not only with the Danube itself, but also with the whole Danube River Basin, which includes its tributaries and the ground water resources.

sagascience - Qu'est-ce que la biodiversité ? La biodiversité, ou diversité biologique, constitue le tissu vivant de la planète. Elle recouvre l'ensemble des formes de vie sur Terre, les relations qui existent entre elles et avec leurs milieux depuis l'origine commune de la vie. Le concept de biodiversité comprend donc de façon indissociable : Manuelle Roville© Bruno Locatelli (www.locatelli1.net) Il faut considérer la biodiversité dans l'évolution continue de la vie sur Terre - dont l'espèce humaine est devenue un acteur majeur. Elle se considère à plusieurs niveaux : © IRD Photothèque / Blanchon, Patrick© Bruno Locatelli (www.locatelli1.net) diversité des gènes (diversité invisible qui est à l'origine de la biodiversité) diversité des espèces (dont l'espèce humaine), et diversité des écosystèmes (dont ceux abritant une forte biodiversité endémique et menacée)

Vital Water Graphics The terms of the equation remain simple: for the next few decades, given the volume of available water, and under the present circumstances, will it be possible to provide enough water to a population forecast to be at least 9 billion by 2050 (according to the medium hypothesis proposed by the United Nations) using a volume which will be roughly the same as it is now? In the context of stress and scarcity, the challenge will be to find creative ways to manage water resources without emphasizing already existing disputes and conflicts. This is raising important questions: is it reasonable to envisage more long distance water transfer without threatening water reserves and harming environmental balance? Which are the countries and regions that will suffer the most due to lack of water?

Notions sur la biodiversité Notions sur la biodiversité Sommaire : 1- Introduction 2- Les écosystèmes 2.1- Le biotope 2.2- La biocénose 2.3- L'écosystème 2.4- La biomasse 2.5- Le biome 2.6- Le réseau trophique 3- L'extinction des espèces 4- Sauvegarder la biodiversité 4.1- Le poumon vert 4.2- Nature ordinaire et nature remarquable 4.3- Les trames verte, bleue, noire 4.4- Les zones "Natura 2000" 4.5- Les zones humides 4.6- Les sciences citoyennes 4.7- La lutte contre les espèces invasives 4.8- Les sauvages des rues 5- Liens sur la biodiversité 1- Introduction La biodiversité est la diversité naturelle des êtres vivants.

Líquido e Incerto - O futuro dos recursos hídricos no Brasil Seis repórteres da Folha mergulham fundo em três situações-limite –secas em São Paulo e no semiárido nordestino e inundações no rio Madeira– e voltam à tona com relatos preocupantes sobre o despreparo do país para enfrentar as emergências que virão Com 12% a 16% da água doce disponível na Terra, o Brasil é um país rico nesse insumo que a natureza provê de graça à população e à economia. Cada habitante pode contar com mais de 43 mil m³ por ano dos mananciais, mas apenas 0,7% disso termina utilizado. Nações como a Argélia e regiões como a Palestina, em contraste, usam quase a metade dos recursos hídricos disponíveis, e outras ainda, como a Arábia Saudita e os Emirados Árabes, precisam obtê-los por dessalinização de água do mar.

La biodiversité à travers les exemples : les réseaux de la vie (tome 2) - Ministère de l'Environnement, de l'Energie et de la Mer 24 janvier 2015 (mis à jour le 14 avril 2015) - Eau et biodiversité Commissariat général au développement durable Brochure 196 pages La planète Terre est une arche de Noé, avec tous les animaux et les végétaux qui nous sont familiers. Mais elle est aussi peuplée par une infinité d’organismes microscopiques tels que les bactéries, invisibles mais pourtant indispensables à l’équilibre des écosystèmes. Comprendre la biodiversité, c’est connaître toutes ces espèces, mais c’est aussi appréhender la dynamique qui les anime. Les êtres vivants se déplacent en effet sans cesse, évoluent dans le temps ; ils ont tissé des réseaux complexes de prédation, de concurrence ou d’entraide.

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