America


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The US Department of Energy (DOE) has published on its website a series on infographics and a great animation showing how wind energy is rapidly gaining pace and its capacity is booming. In 2003, there were 185 wind farms online, powering the equivalent of 1.6 million homes ; in 2008, […]

An American wind energy revolution


I have already noted quite a few times in the past month that grid parity is slowly but surely approaching. What if it were already the case ? To the Applied Materials blog and REneweconomy it is already here in over a hundred countries. Yes, solar photovoltaic installed on rooftops […]

Grid parity for solar PV is already here in 105 ...


Ever since I started to delve into energy and environmental issues, I have been advocating energy efficiency. It is the cheapest solution, and also the best one. This is why I have called it the panacea to all our energy and climate problems. It seems I wasn’t the only one […]

Efficiency gains momentum, decrease emissions



I have been committed since January 2007 to bring you each month a selection of the latest headlines and best researches on sustainable development, climate change and the world energy sector. However, I don’t blog as much as I would like to and generally write around 25 posts per month. […]

Worth an article – my February 2013 tweets


Since I started this blog – and even before – I have read quite a serious amount of books on energy and climate issues. But today I can say I have found my favorite : Reinventing Fire, by Amory Lovins and the Rocky Mountain Institute. Mixing the maths of Sustainable […]

Book review : Reinventing Fire, by Amory Lovins


350.org rally in Washington

This Sunday took place in the United States of America the largest climate rally ever (in the country) up to 40,000 people walked peacefully, chanted and danced in Washington DC. Other rallies were organized in many other states. All had the same message : they were asking President Obama to […]

The biggest US climate rally to date



I have been committed since January 2007 to bring you each month a selection of the latest headlines and best researches on sustainable development, climate change and the world energy sector. However, I don’t blog as much as I would like to and generally write around 25 posts per month. […]

Worth an article – my January 2013 tweets


President Obama SOTU 2013

Earlier this week, the newly reelected US President Barack Obama addressed the nation in the annual State of the Union address. It was the occasion for President Obama to keep his hard stance on climate on energy. His previous speech during his second inaugural address had been a new hope […]

Another great Obama speech on climate


I really enjoy infographics as they enable to gather a lot of information in a few moments. The latest I found via Twitter (see left) is on how a cleantech revolution is already taking place in the United States of America. Indeed, since 2007, energy efficiency, renewables like solar and […]

A cleantech revolution is taking place in the USA



President Obama

President Barack Obama delivered his second Inaugural Address this Monday in Washington DC. Climate change got quite a few mentions and it looks like the second term might be the time where the climate crisis is tackled as it should. However, this was supposed to be the case in his […]

Obama’s second inaugural speech is a new hope


Pink Floyd Dark Side of the Moon

To Treehugger : “ The National Renewable Energy Laboratory (NREL), and their industry partner Solar Junction, have just set the bar even higher in the race for ultra-high-effiency PV cells by achieving another world record of 44% efficiency. “ But wait, there is more as to another article solar PV […]

Solar PV efficiency new record hit : 44%


US President Barack Obama

Barack Obama’s re-election this week occurred shortly after the Hurricane Sandy that killed dozens people and inflicted for billion of dollars of damages to the US economy. The past year has been the hottest ever for the United States. On a positive note, President Obama have introduced various bills and […]

What Obama’s re-election means for climate