Développement durable et efficacité énergétique
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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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11,000 Years' Worth of Climate Data

11,000 Years' Worth of Climate Data | Développement durable et efficacité énergétique | Scoop.it

New research takes the deepest dive ever into historic climate records.

 

Back in 1999 Penn State climate scientist Michael Mann released the climate change movement's most potent symbol: The "hockey stick," a line graph of global temperature over the last 1,500 years that shows an unmistakable, massive uptick in the twentieth century when humans began to dump large amounts of greenhouse gases into the atmosphere. It's among the most compelling bits of proof out there that human beings are behind global warming, and as such has become a target on Mann's back for climate denialists looking to draw a bead on scientists.

 

Now it's gotten a makeover: A study published in Science reconstructs global temperatures further back than ever before -- a full 11,300 years. The new analysis finds that the only problem with Mann's hockey stick was that its handle was about 9,000 years too short...


Via Lauren Moss
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10 High-Tech, Green City Solutions for Beating the Heat

10 High-Tech, Green City Solutions for Beating the Heat | Développement durable et efficacité énergétique | Scoop.it

From a solar mansion in China to a floating farm in New York, green buildings are sprouting up in cities around the world. Among their many benefits are curbing fossil-fuel use and reducing the urban heat island effect...


Via Lauren Moss
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Heat from North American cities causing warmer winters, study finds

Heat from North American cities causing warmer winters, study finds | Développement durable et efficacité énergétique | Scoop.it

Researchers say extra heat generated by huge cities explains additional warming not explained by existing climate models.


Those who wonder why large parts of North America seem to be skipping winter have a new answer in addition to climate change: big city life.

A study, published in the journal Nature Climate Change, found that the heat thrown off by major metropolitan areas on America's east coast caused winter warming across large areas of North America, thousands of miles away from those cities.

 

Scientists have for years been trying to untangle how big cities – with the sprawl of buildings and cars – affect climate. The study suggests cities themselves have far-reaching effects on climate, in addition to the climate pollution caused by the burning of fossil fuels.


Via SustainOurEarth, Digital Sustainability, Lauren Moss
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Brittany Ortiz's curator insight, September 29, 2014 5:15 PM

Very interesting reading this. It seems quite true since the past winter didn't seem as cold as most winters here in Rhode Island. If the big cities cause the winter to be less cool then in the future, would winter even be cold? Lets hope and say this problem will never happen.