Quand l'Europe se chauffera au soleil du Sahara...

Convertir le soleil des déserts en électricité : c'est autour de cet ambitieux projet que devait se constituer, lundi 13 juillet, à Munich, un consortium sous l'égide du réassureur allemand Munich Re. Les entreprises fondatrices - parmi lesquelles le conglomérat Siemens, les électriciens Eon et RWE, et la Deutsche Bank - réfléchissent à la construction d'une centrale solaire géante, dans le nord de l'Afrique et du Proche-Orient, qui permettrait d'approvisionner l'Europe en énergie propre. Cette initiative industrielle ...

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Desertec, un projet réaliste, mais qui a un coût élevé

Indépendamment de son coût – 400 milliards d'euros – et des accords géopolitiques qu'il implique, le projet Desertec n'est pas irréaliste. "Les technologies sont connues depuis plus de vingt ans et elles ont démontré leur fiabilité", observe Philippe Malbranche, responsable des programmes de recherche à l'Institut national de l'énergie solaire (INES) de Savoie, qui juge "le concept extrêmement intéressant". Le dispositif prévu comprend, d'abord, des centrales thermiques solaires à concentration. Celles-ci sont formées de batteries de miroirs – ils peuvent être alignés sur plusieurs kilomètres – qui, de forme cylindro-parabolique, réfléchissent la lumière du soleil dont ils suivent le déplacement, en la concentrant vers un tube contenant de l'huile de synthèse. Porté à 400°C, ce fluide caloporteur....

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Les réseaux intelligents révolutionnent l'électricité

Ce mode de gestion permet de réduire la consommation et de multiplier les sources d'énergies renouvelables

La révolution de l'électricité est en marche. Les réseaux électriques intelligents, ou «smart grids», s'apprêtent à bouleverser notre manière de produire, de distribuer et de consommer l'énergie. L'enjeu écologique est triple : les smart grids sont le sésame pour réduire la consommation globale d'électricité, limiter le recours aux centrales les plus polluantes et intégrer des millions de sources d'énergies renouvelables.

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Biochar: Black is the new green

Locking carbon up in soil makes more sense than storing it in plants and trees that eventually decompose:

To meet the challenges of global climate change, greenhouse-gas emissions must be reduced. Emissions from fossil fuels are the largest contributor to the anthropogenic greenhouse effect, so a reduction in fossil energy use is a clear priority1. Yet, because some emissions will be unavoidable, a responsible strategy also means actively withdrawing carbon dioxide from the atmosphere.

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Companies signed agreement to develop biggest Concentrated Solar Power Project ever

Munich – 12 companies today signed a Memorandum of Understanding in Munich to establish a DESERTEC Industrial Initiative (DII). The objective of this initiative is to analyse and develop the technical, economic, political, social and ecological framework for carbon-free power generation in the deserts of North Africa. The DESERTEC concept, developed by the TREC Initiative of the Club of Rome, describes the perspectives of a sustainable power supply for all regions of the world with access to the energy potential of deserts. The founder companies of the DII, whose regional focus is on Europe, the Middle East and North Africa (MENA), will be:

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Africa and the global financial crisis

The potential impact of these crises on the poorest is significant, but perhaps what is even more important to focus upon is not only what will happen to these countries if the world does not consider them in the solution, but what benefits could be reaped if the world does.

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Africa as a potential partner in the fight against climate change

While Africa certainly has contributed least to the current climate challenges, the continent is expected to feel the ramifications ―first and worst. While this obviously poses yet another threat to recent gains made on development, there are untapped opportunities for partnering with Africa to stem further declines.

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Harvesting agricultural carbon in Kenya

The BioCarbon Fund of the World Bank has identifi ed large untapped greenhouse gas mitigation (GHG) potential in the smallholder agricultural sector in East Africa based on the adoption of SALM practices, which can contribute to climate change mitigation, generate revenue streams from carbon payments for environmental services, and maintain agrobiodiversity, while reducing farmers’ vulnerability to climate change. Carbon revenues have the potential to lower barriers to the adoption of SALM practices.br>

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What is carbon trading?

Carbon trading is effectively an interaction between buyers and sellers trading the right to emit greenhouse gases. Mandatory government schemes have been created as a result of the Kyoto protocol, and are known as the compliance market. The scope of legislative schemes is largely limited to heavy industry and power generating companies at present, although there are moves to increase the number and type of organisations that will be included in compliance schemes in future.

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Human activity is the primary driver of changes in climate

The recent Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) leaves no doubt that human activity is the primary driver of changes in climate through emissions of greenhouse gases.

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Biofuels Offer Opportunity for Development in Poorer Countries

We are shocked at the callous manner in which Oxfam, who pretends to speak on behalf of the world’s poor, can so blatantly dismiss biofuels whenthey offer the developing world the first opportunity in decades—if not ever—to build a sustainable industry that would give them access to added value markets while increasing food and fuel security.

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EU Emissions Trading Scheme (ETS)

The European Union’s (EU) Emissions Trading Scheme (ETS) is a cornerstone of the EU’s efforts to meet its obligation under the Kyoto Protocol. It covers more than 10,00 energy intensive facilities across the 27 EU Member countries; covered entities emit about 45% of the EU’s carbon dioxide emissions.

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Carbon capture and storage in the post-Kyoto climate change negotiations

Carbon capture and storage (CCS) technologies have increasingly been brought to the fore as a valuable tool to reduce greenhouse gas emissions and achieve CO2 stabilization. In the policy debate, CCS is advanced as an option in the context of a portfolio of climate change mitigation strategies, such as transition to renewable energy, promotion of energy efficiency and other low-carbon alternatives such as nuclear and hydro.

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What is Carbon Capture and Storage?

CCS involves capturing the carbon dioxide released by coal or gas fired power stations; transporting it for sometimes hundreds of miles and then storing it underground.

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Reducing emissions from deforestation and forest degradation (REDD)

The objective of REDD payment distribution mechanisms is to support policies and measures that reduce deforestation and degradation through transfer of revenues from international REDD funds or carbon markets to (or within) national levels.

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Biofuels for developping nations

For developing nations seeking to develop their biofuels sector, the challenge is to reduce their dependence on oil without damaging the environment for reducing food production. In Indonesia, we have conducted environmental assessments of the impact of palm oil, while in Madagascar we have been working on Jatropha curcas production, transformation, and commercialization.

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GHG Protocole

The Greenhouse Gas Protocol (GHG Protocol) is the most widely used international accounting tool for government and business leaders to understand, quantify, and manage greenhouse gas emissions. The GHG Protocol, a decade-long partnership between the World Resources Institute and the World Business Council for Sustainable Development, is working with businesses, governments, and environmental groups around the world to build a new generation of credible and effective programs for tackling climate change.

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CDM Executive Board opportunity for african projects

There are several opportunities for further integrating Sub-Saharan African and other developing countries into global carbon markets. Simplifying the CDM rules for determining baselines, monitoring carbon emissions, and enforcing offsets and broadening the range of eligible projects to include avoided deforestation and soil carbon sequestration would facilitate the participation of Sub-Saharan African countries.

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More credibility for african projects

Voluntary carbon offsets certainly have much greater potential since many of the inhibiting transaction costs of CDM are avoided. The increasing awareness of climate change, and growing tendency towards ethical investments from individuals and businesses in the world’s “richer communities”, ...

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