Electric buses are a solution to our cities’ worst problems

A lot of news and noise surround electric cars but another vehicle is also benefitting largely from elecrification: buses. Running not for just a little bit in the morning and in the evening, they run all day, and sometimes, even part of the night. Tranporting not just one or two people to work at a … Read more

Cleantech could help cities save $17 trillion

Smart infrastructure choices from cities worldwide would save them $17 trillion (15.2 billion euros) by 2050. The solutions – renewable energy, public transportation, energy efficiency – are not new but the lens of this new study is interesting. 

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Announcing our Kickstarter campaign

I have the pleasure to announce you all that the biogas project I have been working with classmates this summer is now being funded on Kickstarter. After working in Colombia on large scale biogas projects, I have been lucky to work for the past three months with classmates from Pinchot University, Srirup Kumar and Joe McNulty, on a small scale biodigestor.

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Green and blue at the same time with Biosolar Roof

What I love about blogging is coming back to old posts with new developments and ideas. Years ago I was wondering what was the most sustainable : blue roofs (with solar panels) or green ones. Some people combine both ideas and this is a GREAT idea. 

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From parking lots to parks

For this new chapter of my life – studying for my MBA in Sustainable Business at Pinchot University – I am living next to a parking lot and I have been wondering if the owners could just plant a few trees to make it look better. 

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Hydrogen is ” an incredibly dumb ” car fuel

That’s Elon Musk’s opinion so that must be true. Tesla’s genius founder put yet another nail in the hydrogen coffin and stated what we knew all along : hydrogen is a technology that may well be too complex to ever be significant.

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A liter of light, an update

Back to  2011 I wrote about Isang Litrong Liwanag, a Filipino iniative to bring light to people living in the slums of Manila. Years laters, the project has grown, found partners and is expanding globally.

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The Lima Minima : it’s up to us

This weekend the climate negotiations within the United Nations ended in Lima, Peru and most if not all media outlets are expressing their discontent and show how little real progress was achieved.

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Climate change endangers Winter Olympics

Sochi 2014As you know, the Russian city of Sochi is the host of the Winter Olympics since Friday. According to a brand new study, this might be the right time as it is most probable the city won’t be able to do so in the future because of climate change.

According to the climatologists from the University of Waterloo, Canada : ” Only six of the previous Winter Olympics host cities will be cold enough to reliably host the Games by the end of this century if global warming projections prove accurate ”

Even artificial snow making won’t be enough to provide snow for Winter Olympics by mid-century if rising temperatures were to continue unabated.

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Trees capture particulate pollution

Air pollution kills a lot of people around the world and the situation in some Chinese cities has become nothing short of unbreathable. Meanwhile, we have seen in my series ” Plant, baby, plant “ that trees can solve many related problems. To a new study from Lancaster University, trees can absorb half of particulates, … Read more

Book review : Cradle to cradle

Cradle to cradle book coverInspiring : that’s the adjective that comes to mind as I have just finished reading Cradle to Cradle, by William McDonough and Michael Braungart. I had heard about that book for quite some time and I understand now why.

The book  was written  in 2002 –with a 2008 reedition – and is replete with enlightening examples of how we can re-imagine the way we design and produce our products, cities and way of life.

I believe Cradle to Cradle is just THE book that should be read by engineers and people working in related fields (including architects and designers)

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Bike sharing is booming too

Last week I was reporting that biking is booming in cities around the world. Grist wrote about how bike sharing is an essential component of this phenomenon as they are more than 500 cities in 49 countries with bike-sharing programs. Collectively, they represent as many as 500,000 bicycles combined. This just might be the beginning … Read more

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