Arquivo de 28 de Fevereiro de 2010

Permaculture Ethics and Design Principles with David Holmgren

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TRANSITION TOWNs

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In Transition 1.0 from Transition Towns on Vimeo.

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Atlas of hidden water may avert future conflict

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They are one of the world’s greatest and most precious natural resources, yet are entirely hidden. Now, for the first time, a high-resolution map shows where underground aquifers store vast amounts of water.

The map of “blue gold” (pdf format, 4 MB) is the result of nearly a decade of sometimes difficult talks between neighbouring governments, mediated by UNESCO. The hope is that it will help pave the way to an international law to govern how water is shared around the world.

Aquifers are underground layers of rocks or sediments from which water can be extracted - normally by drilling boreholes or digging wells. They hold 100 times the volume of freshwater that flows down rivers and streams around the world at any time.

What the UNESCO map reveals is just how many aquifers cross international borders. So far, the organisation has identified 273 trans-boundary aquifers: 68 in the Americas, 38 in Africa, 155 in Eastern and Western Europe and 12 in Asia.

Each trans-boundary aquifer holds the potential for international conflict - if two countries share an aquifer, pumping in one country will affect its neighbour’s water supply.

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Global Groundwater Information System (GGIS)

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A GGIS is an interactive and transparent portal to groundwater-related information and knowledge.

The system is meant for various categories of stakeholders, including both professionals and the general public. The GGIS is simple to use and completely publicly accessible. It leads the user from aggregated, global information (Global Overview) via related information sources (Meta-Information Module) towards a direct information exchange (Collaborative Environment).
Global Groundwater Monitoring Network (GGMN) is the youngest and the most demanding GGIS module. Its purpose is to monitor a global change of groundwater resources

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Aquíferos - Estado de São Paulo Brasil

Escrito em 28 de Fevereiro de 2010 * Sem Comentários

O Projeto Aqüíferos é um dos 21 Projetos Ambientais Estratégicos do governo do Estado de São Paulo que visam promover o desenvolvimento sustentável, considerando as prioridades da sociedade paulista, a partir de um esforço de gestão eficiente do meio ambiente que promova resultados efetivos e transparentes.

Este projeto visa promover a proteção dos aqüíferos do Estado de São Paulo identificando as áreas críticas e sensíveis em termos de qualidade e quantidade e criando mecanismos de controle e restrição, para propiciar condições de uso sustentável da água subterrânea.

http://homologa.ambiente.sp.gov.br/aquiferos/publicacoes.asp

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