Monthly Archives: October 2010


The main problem with renewables today is scale. Even if they are growing faster and faster, we very rarely see projects that will bring more than a few hundred megawatts to the grids. But it is changing. Indeed, to CleanTechies, South Africa will soon build a five gigawatt park where […]

South Africa to build a 5,000 MW solar park


As the New York Times notes aquaculture might be a good solution to avoid the depletion of fish stocks and thus be a sustainable way to feed the billion of people that will be born this century. However fish farming poses several problems such as diseases, water pollution, heavy antibiotics […]

Could aquaculture be a sustainable solution ?


One of my previous posts was useful as an answer to a discussion on CleanTechies, so I decided to repost it there :  ” It has been previously stated here in an article by Crisp Green that generating energy from poop is unlikely. “ ” I disagree. It seems that […]

Cow manure could help power the internet



The New York Times Green blog published a great article about a recent report from IHS Emerging Energy Research on tidal wave. Even if it has been starting very slowly, the energy source could bring up to 10 GW by 2030 globally. “The global ocean energy sector is at a […]

The potential of tidal power


Will fighting climate change become the ultimate fight ? If the Palestinian Authority and Israel can sit at the same table to fight climate change I guess we can save ourselves from warming temperatures. To the AFP: ” Some 15 Mediterranean countries, including Israel and the Palestinian Authority, agreed Friday […]

Climate change unites Mediterranean nations


A while ago TreeHugger wrote a compelling article on how India is committed to low carbon growth and energy sources. The local environment Minister, Mr. Jairam Ramesh stated in an interview given to Reuters : “We will unilaterally, voluntarily, move on a low-carbon growth path. We can’t have 8-9% GDP […]

India will invest 2.3 trillion in low carbon tech



Triple Pundit published a great reflection on why we – as a global society – need to become more sustainable. Particularly targeted at average people who haven’t environmental issues in mind, it does an awesome job. Enunciating compelling arguments on population, education, natural capital, energy dependence and economy, I believe […]

Another awesome reflection on sustainability


I already wrote a few articles on dark skies and light pollution. It seems the phenomenon is even worse as one can see with the image on left (courtesy of Stellarium, a great astronomy freeware) This also has an important impact on greenhouse gases emissions. In Australia alone, public lightning […]

For many, the sky isn’t dark anymore


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Last week the US National Renewable Energy Laboratory (NREL) released a report stating the United States could get twenty percent of their electricity by offshore wind by 2030. On the other side of the Pacific Ocean, China installed 13,8 GW of capacity in 2009 alone, to reach a capacity of […]

Prepare for a wind energy century



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” The South Korean government has announced that it intends to invest $35.4 billion in the renewable energy sector over the next five years as it aims at reducing its dependence on fossil fuels and build a green economy for the future.” “The South Korean government announced the ‘Green Korea’ […]

South Korea to invest $35 billions in energy


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Last week US President Barack Obama announced he will put back solar panels on the White House next year. The first solar panels were installed by President Carter in the 1970s and removed by Reagan in 1986. This made me wonder when l’Elysée, the residence of French Presidents will install […]

Obama to put solar panels on the White House


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I know it since I read Collapse, Jared Diamond’s fantastic book about how various societies disappeared : trees matter ! Between soil erosion prevention and climate change mitigation, there are many reasons for keeping forests alive. Now comes a British study noting that the annual cost of deforestation is five […]

The tremendous cost of vanishing forests