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Scoop.it!
Les besoins des collaborateurs ont particulièrement évolués ces dernières années ; ils ont des souhaits et besoins différents qui demandent à l’employeur de faire évoluer sa stratégie des espaces d… 
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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, Lauren Moss, Stephane Bilodeau
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. |
Scoop.it!
Solving many of the world’s biggest environmental challenges may have just gotten more difficult. The Department of Economic and Social Affairs of the UN recently released population data indicating the midline estimate - more than 10.8 billion by 2100 - is 800 million higher than the 2010 prediction. Today’s rural-to-urban migration will continue in full force, with upwards of 84% of the planet living in cities at the close of the century (compared to 52 % today). Of course population isn’t the only factor contributing to humans’ planetary impact. Consumption may be equally important when looking at the drivers of environmental change across the Earth. Nevertheless, population will continue to be a major consideration as we work to address issues ranging from energy and food security to water availability, species loss, pollution, urban planning and more in the decades ahead... Via Lauren Moss
Aleasha Reed's curator insight,
September 27, 2013 9:14 AM
By the year 2100 our global population is calculated to reach 10.8 billion. The United States is expected to grow another 150 million by this time. Our population right now is 313.9 million right now. Our big cities will continue to grow, and new ones will arise as the years pass. 
Lanne Marie-Christine's curator insight,
November 11, 2013 2:44 AM
La démographie, une donnée déterminante pour l'évolution du climat et la pression sur les ressources naturelles. Nous finissons hélas par être trop nombreux sur terre pour ce qu'elle peut supporter au rythme actuel... 
MissPatel's curator insight,
December 17, 2014 2:09 AM
A future to look forward to? Your potential future? Good, bad or ugly? |
