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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This is the what the world will look like if we can curb global warming

This is the what the world will look like if we can curb global warming | Développement durable et efficacité énergétique | Scoop.it
This is what the Earth could look like within 100 years if we succeed in curbing climate change.
Stephane Bilodeau's insight:
"There's no stopping global warming," Gavin Schmidt, a climate scientist who is the director of NASA's Goddard Institute of Space Studies, previously told Business Insider. "Everything that's happened so far is baked into the system."
Right now, humanity is standing on a precipice. If we ignore the warning signs, we could end up with what Schmidt envisions as a "vastly different planet" — roughly as different as our current climate is from the most recent ice age. Or we can innovate. Many best-case scenarios assume we'll reach negative emissions by 2100 — that is, absorb more than we emit through carbon-capture technology. Schmidt says the Earth in 2100 will be somewhere between "a little bit warmer than today and a lot warmer than today." On a planet-wide scale, that difference could mean millions of lives saved, or not.
 
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We had all better hope these scientists are wrong about the planet’s future

We had all better hope these scientists are wrong about the planet’s future | Développement durable et efficacité énergétique | Scoop.it
A controversial climate change catastrophe study has now made its way through peer review.
Stephane Bilodeau's insight:
Stratification, the key idea in the new paper, means that warm ocean water would potentially reach the base of ice sheets that sit below sea level, melting them from below (and causing more ice melt and thus, stratification). It also means, in Hansen’s paper, a slowdown or even eventual shutdown of the overturning circulation in the Atlantic ocean, due to too much freshening in the North Atlantic off and around Greenland, and also a weakening of another overturning circulation in the Southern Ocean. 

This, in turn, causes cooling in the North Atlantic region, even as global warming creates a warmer equatorial region. This growing north-south temperature differential, in the study, drives more intense mid-latitude cyclones, or storms.
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Watch 62 Years of Global Warming in 13 Seconds

Watch 62 Years of Global Warming in 13 Seconds | Développement durable et efficacité énergétique | Scoop.it

An amazing 13-second NASA animation depicting how the globe has warmed during the period of 1950 to 2012.


From our friends at NASA comes this amazing 13-second animation that depicts how temperatures around the globe have warmed since 1950. You’ll note an acceleration of the temperature trend in the late 1970s as greenhouse gas emissions from energy production increased worldwide and clean air laws reduced emissions of pollutants that had a cooling effect on the climate, and thus were masking some of the global warming signal.

 

The data come from NASA's Goddard Institute for Space Studies in New York (GISS), which monitors global surface temperatures. As NASA notes, “All 10 of the warmest years in the GISS analysis have occurred since 1998, continuing a trend of temperatures well above the mid-20th century average.


Via Lauren Moss
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Mercor's curator insight, January 31, 2013 9:55 AM

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Rescooped by Stephane Bilodeau from RSE et Développement Durable
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La #Terre #avant et #aujourd’hui : la #NASA dévoile des clichés inédits sur les changements dramatiques de notre planète

La #Terre #avant et #aujourd’hui : la #NASA dévoile des clichés inédits sur les changements dramatiques de notre planète | Développement durable et efficacité énergétique | Scoop.it
Voici quelques clichés récupérés sur le site officiel de la NASA. Ils représentent les mêmes endroits photographiés quelques années auparavan

Via François GARREAU
Stephane Bilodeau's insight:
"La différence temporelle varie entre 5 et 100 ans. Les changements sont impressionnants. L’Homme modifie en toute conscience l’apparence de son monde mais bien souvent, dans le mauvais sens. A vous de juger…."
 
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Rescooped by Stephane Bilodeau from rushes infos
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BELLES IMAGES...La carte interactive de la Nasa qui illustre le désastre de la pollution en mer

BELLES IMAGES...La carte interactive de la Nasa qui illustre le désastre de la pollution en mer | Développement durable et efficacité énergétique | Scoop.it

UN SI JOLI BLEU lumineux...
Au fil des décennies, les détritus du monde entier ont formé 5 "îles de déchets" aussi appelées "continents de plastique" qui ne cessent de tourbillonner à travers les eaux du globe. Ces déchets sont surtout présents dans l'Océan indien, dans le pacifique (Nord et Sud), ainsi que de part et d'autre de l'Océan Atlantique. Afin de représenter l'ampleur et les mouvements de ces "océans de plastique", la Nasa a réalisé une carte interactive sur la base des données recueillies par des bouées, disposées en mer par des scientifiques.

(...)


Via Build Green, Rushes Infos
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