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Développement durable et efficacité énergétique
Pour un développement durable et pour l'efficacité énergétique. «Pour ce qui est de l’avenir, il ne s’agit pas de le prévoir mais de le rendre possible. »  Antoine de Saint-Exupéry
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In the Climate Change Economy, It's About Efficiency, Not Just Growth

In the Climate Change Economy, It's About Efficiency, Not Just Growth | Développement durable et efficacité énergétique | Scoop.it

North American cities are producing substantially less wealth per ton of greenhouse gas emissions than their European counterparts.


Research has shown that if you know a country's GDP, you can pretty accurately estimate its carbon emissions. There's "almost a mechanical relationship" between the two. And as a depressing corollary: Emissions rise much faster in good times than they fall during, say, a global recession.

Cities in some parts of the world are already doing a substantially better job at decoupling these two trends than others, wringing the most wealth out of the smallest carbon footprint. These are the cities that produce the greatest amount of GDP per ton of greenhouse gasses emitted.


The Carbon Disclosure Project, along with AECOM and the C40 Cities, have calculated this "economic efficiency" for dozens of global cities that participated in a questionnaire on how they are preparing for climate change...


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Why Carbon Footprints Matter: Calculating Your Impact

Why Carbon Footprints Matter: Calculating Your Impact | Développement durable et efficacité énergétique | Scoop.it
The energy that powers the world comes mostly from coal, gas, and oil, and that’s led us to CO2 levels over 390 parts per billion now, and climate change. We can think of climate change as a design question: where do we want to end up? Impact studies tell us what will happen to the planet as we warm up—it's basically a litany of horrors. At a 1.5 degree increase, we'll lose 10 percent of species. At 2 degrees, we'll lose 90 percent of coral reefs. At 3 degrees, 1 to 4 billion people will face water shortages, leading to war across the planet. We need to each understand the basic math behind energy and climate change so we can reach the right solutions. We need a massive shift to renewable energy, and we also need changes in our everyday lives. One first step is understanding your own carbon footprint. 
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Duane Craig's curator insight, February 7, 2013 7:24 AM

It's strange how so many are concerned about leaving debt to the next generations, but unconcerned about leaving a compromised environment.

Mercor's curator insight, February 7, 2013 7:58 AM

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Electric Car's curator insight, February 8, 2013 12:56 AM

What is YOUR Carbon footprint?

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The Hestia Project Maps Carbon Emissions of US Cities Down to Street Level

The Hestia Project Maps Carbon Emissions of US Cities Down to Street Level | Développement durable et efficacité énergétique | Scoop.it
A team of researchers from Arizona State University have developed a new software system, called Hestia, that is capable of estimating greenhouse gas emissions across entire urban landscapes, all the way down to street level and individual buildings.

The project, known as Hestia after the Greek goddess of home and hearth, allows the team to combine extensive public database “data-mining” with traffic simulation and building-by-building energy-consumption modeling.

According to researchers, Hestia’s increased detail and accuracy will help cities, and possibly even other nations, identify where an investment in energy and greenhouse gas savings would have the greatest impact...


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Wooden Skyscrapers: A New Level of Sustainability?

Wooden Skyscrapers: A New Level of Sustainability? | Développement durable et efficacité énergétique | Scoop.it

A new breed of high-rise architecture is in the process of being born, thanks to the collaborative efforts of modern design pioneers. Envisioned as the best sustainable option for meeting world housing demands and decreasing global carbon emissions, wooden mega-structures are now one step closer to becoming a reality.


“Big Wood,” a conceptual project to the eVolo 2013 Skyscraper Competition, builds on the premise that wood, when harvested responsibly, is one of the best tools architects and engineers have for reducing greenhouse gas emissions and creating healthy communities. Aspiring to become one of the greenest skyscrapers in the world, Big Wood challenges the way we build our cities and promotes timber as a reliable platform to support tomorrow’s office and residential towers...


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Linda Alexander's curator insight, April 20, 2013 1:47 PM

Whoa..Chicago!

Geovanni's curator insight, May 8, 2013 6:32 AM

Fascinating place. Must of been a lot of wood to be created.

Bubba Muntzer's comment, May 13, 2013 8:44 AM
It takes around 30 years for a seedling to grow into the kind of wood that can be used in construction. A little maintenance is required during that period. Meanwhile it's soaking up CO2 and making oxygen. The only industrial processes required are to cut it down and cut it into boards and 2 x 4s. If you stagger your planting you have an endless supply.
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Green and Healthy Buildings: monitoring consumption & ecology in the built environment

Green and Healthy Buildings: monitoring consumption & ecology in the built environment | Développement durable et efficacité énergétique | Scoop.it

According to the United Nations Environment Programme, buildings account for approximately 40 percent of worldwide energy use and are responsible for 30 percent of greenhouse gas emissions. They also play an important role in the health and wellbeing of those who inhabit them each day.

The mass of information about what makes a building green tends to concentrate on new and innovative designs that create beautiful photo spreads. While such examples are inspiring, they make up a very small percentage of all buildings in operation.

Green Buildings Alive is an environmental initiative aimed at collecting and sharing data on existing buildings between 10 and 60 years old. The data is collected from office towers in Australian Central Business Districts (CBDs) and shared on a public website.


For more on this innovative, environmental initiative that provides interactive visualizations of building-performance data to help understand the complexities and relationships among sustainability, health, and energy, read the complete article


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