Energy

Whatever concerns energy and the ways to produce it goes here

Why solar cookers really matter

One of the main causes of climate change is fuelwood collection for cooking as the New York Times noted that “soot from tens of thousands of villages in developing countries is responsible for 18 percent of the planet’s warming“. Furthermore, deforestation aggravates poverty in many ways as soils deprived from their forests loose their nutrients […]

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Retrofitting the Empire State Building

What happens when organizations like the Clinton Foundation and the Rocky Mountain Institute work together ? Answer: they retrofit the Empire State Building. This will cut by the energy consumption by 40 percent. Built during the 1930s to create thousands of jobs and answer the economic crisis, its $20 million retrofit will occur as we

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Why renewable energies aren’t that sustainable

Even if I am an advocate of an increased use of renewable energy sources I am fully aware of their drawbacks. To me, they don’t constitute the panacea most people claim they are. After my posts on why renewables aren’t perfect solutions and the climate change mitigation paradox I would like to share with you

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Can we cut by 40% our GHG emissions by 2020 ?

When the IPCC published its various reports in 2007 it concluded that to avoid dramatic climate changes, cutting by as far as 40 percent greenhouse gases (GHG) emissions could be necessary. This contrast heavily with the targets the United States and the European Union set as they are closer to 20 than to 40 percent.

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A look at the main future automotive technologies

With peak oil approaching, alternatives are being sought to power our cars. From hybrids to biofuels and from electricity to algae, the possibilities are numerous. Terra Eco, a French magazine, published recently an article on this very topic and the least we can say is that the findings are interesting. Cars in 10 or 20

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Pictures of Earth Hour: how we waste energy

Earth Hour was a tremendous success as many people participated. Cities turned down the lights of  their monuments and the pictures of the event are amazing and totally illustrate how much energy and money we could save. The Boston Globe proposed a series of 17  great pictures illustrating the phenomenon. Instead of turning down all

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Tonight is Earth Hour

Tonight at 8.30 pm local time it will be Earth Hour. This event launched by the WWF is promoting awareness on global warming. Many cities and companies all around the world will participate. Last year no less than 50 million people switched their lights off for the occasion. This year, the NGO is targeting one

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Shuting down PCs at night could save billions

An article on TreeHugger caught my attention as it explained that half US employees – and similar figures in other countries – don’t turn off their computers at the end of their work day. The potential savings are impressive. In America: $2.8 billion, in the United Kingdom $420 million and Germany $1.2 billion. That’s right,

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More and more support for nuclear

Times they are a-changin’ sung Bob Dylan. This is true as after years of despisal more and more people – even environmentalists  previously against such solutions – support nuclear as a way to avoid dramatic climate change. This became apparent as Sweden stated it won’t stop as planned its nuclear plants next year and will

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Assessing and ending light pollution

Light pollution is a major problem for astronomers in most if not all countries (see map) . But for the International Year of Astronomy this may change with the following initiative. Globe at Night allows astronomers to easily assess the phenomenon with a series of charts. By watching the Orion Constellation, it is simple to

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