Don't Miss This Reality TV | Sarah Chasis. Political barriers to climate change adaptation. Climate change effects are already observable in many parts of the world and, according to the Intergovernmental Panel on Climate Change, a continuous rise in mean temperatures for the rest of the century is very likely unavoidable. As knowledge of the benefits of early adaptation and doubts about the future of the Kyoto protocol have grown, climate change adaptation has become an evermore prominent item on political agendas.
However, even though the need for additional policies on adaptation was already acknowledged at the time of the ratification of the UN Framework Convention on Climate Change (UNFCCC) in 1992 and is now probably one of the most fashionable issues in the international public arena, the implementation of adaptation still seems problematic. In fact, if adaptation policies are blooming all over the world, they often don’t lead to concrete measures. In this respect they resemble “empty shells”, a problem that can be observed both in the developed and developing world. Neanderthals lacked ice age adaptations. By Dan Vergano, USA TODAY Updated 2011-10-23 11:26 PM The super-sized schnozzes of Neanderthals, humanity's vanished ancient cousins, have long attracted speculation that they were physical adaptations to Ice Age conditions.
Not so, says a new comparison of human honkers. The Forbes' Quarry Neanderthal FQ1 (left) and a Recent Homo sapiens cranium (right). The crania have been rendered partly transparent to highlight the frontal (purple) and maxillary (red) sinuses. The amount of pneumatized space is broadly similar in the two individuals.
Pointing to studies of Inuits, as well as cold-climate-grown macaques and rats, a team led by Todd Rae of Roehampton University in London, reports "we would expect the opposite," in the current Journal of Human Evolution. One other problem, says the study, is that nobody has verified whether the sinuses of Neanderthals actually are bigger than human ones, claims made going back to 1861. So, why the big noses? By Dan Vergano. Two new videos about computational science: Modeling Climate and Designing Supercomputers. - Frontier Scientists Blog | Nature Publishing Group.
By Liz O’Connell, Fairbanks, Alaska, April 3, 2012—- “An artist that discovers a new process or new material— the same thing is happening in computation. People are constantly embarking on new discoveries; that’s what gets people excited about science,” said Greg Newby, Arctic Region Supercomputing Center director at the University of Alaska Fairbanks. Oak Ridge National Laboratory, Supported by the Office of Science of the U.S. Department of Energy. Stunning science models produced on supercomputers in the videos Modeling Climate and Designing Supercomputers: Cray & AMD Address Challenges illustrate Newby’s point.
Cray XT5, Oak Ridge National Laboratory, Cray Inc. Supercomputers are the tools for scientists that enable them to model more detailed and complex phenomena. Fascinating videos of current scientific discoveries in some of the Arctic’s most remote and dramatic landscapes are chronicled in short videos, Twitter feeds, blogs and web reports. Chomsky on the Environment, Corporate Propaganda and Externalities. Focus on Technology Overlooks Human Behavior when Addressing Climate Change - sciencenreview. First Posted: Mar 19, 2012 04:27 PM EDT Richard York, professor of sociology and environmental studies at the University of Oregon, says his modeling of global data from the last 50 years shows that displacing fossil fuel-based energy sources effectively with alternative sources will require a change in human behavior, not just technology.
(Photo : University of Oregon) Technology alone won't help the world turn away from fossil fuel-based energy sources, says University of Oregon sociologist Richard York. In a newly published paper, York argues for a shift in political and economic policies to embrace the concept that continued growth in energy consumption is not sustainable. Like Us on Facebook Many nations, including the United States, are actively pursuing technological advances to reduce the use of fossil fuels to potentially mitigate human contributions to climate-change.
Source: University of Oregon. Climat : Phil Jones publie toutes ses données brutes. Les émissions de CO2 ont atteint un niveau record en 2010. Freeman Dyson - Carbon dioxide in the atmosphere: conclusions. We know that the ozone disappeared from the Antarctic over a large region; during the last 20 years you have this thing called the ozone hole which appears in the spring in the Antarctic, and it doesn't yet appear in the Arctic, but if the stratosphere over the Arctic gets cooled down it's likely it's going to happen in the Arctic. And that's of course much more serious, since it happens there's a much larger population within the Arctic regions than there is within Antarctic; I mean, the Antarctic happens to be essentially empty of people, very fortunately. But when it happens in the Arctic, that's going to be a major disaster if we don't do something about it.
So that's my primary concern with the carbon dioxide at the moment, but it's not what the public is worrying about. Freeman Dyson - Carbon dioxide in the atmosphere: conclusions - Web of Stories. ClimateTV Home. Share this .COM deal with friends! Over 53 million domains registered. Copyright © 1999-2012 GoDaddy.com, LLC. All rights reserved. *One FREE .COM, .CO, .NET or .ORG with purchase of a new 12-, 24- or 36-month website builder plan. Plus ICANN fee of $0.18 per domain name per year. You must add the domain name into your cart before purchase, and you must select a domain term length equal to or less than the term length of your website builder plan to qualify for the free domain offer. If you purchase a domain name for a term longer than the term of the website builder plan, you will be charged for the additional registration term at the then-current rate. . + New .COMs $7.99/yr plus 18 cents/yr ICANN fee. Après Copenhague, les villes et les régions doivent relever le d.
Terre, Climat, Environnement. 30 janvier 2014 Terre climat environnement Sauvons les grosses bêtes (2) Sauvons les grands arbres, plaide cette note. Mais faut-il aussi sauver les grosses et souvent méchantes bêtes de l’ordre des Carnivora ? Oui, répond une publication récente dans Science (William J. Ripple et al. 10 janvier 2014). Le nombre d'espèces total des Carnivora est petit, 245 espèces terrestres, une misère au regard des milliers d’espèces de papillons ou d’insectes. Mais leur rôle écologique provient de leur position au sommet des chaînes alimentaires, ce qui leur donne une fonction régulatrice majeure, dont la perte perturbe les équilibres antérieurs, et peut poser des problèmes aux sociétés humaines. _ 13 réactions.
{sciences²} Tres hivers 2009;2010 Météo France vient de publier son bilan de l'hiver 2009/2010 (hiver au sens climatique, décembre, janvier, février). Il restera comme un hiver assez froid, avec 1,2°C sous la moyenne climatique (1971-2000)... exactement comme l'hiver dernier, 2008-2009. D'après le bilan Météo France, l'hiver a été «froid, fréquemment neigeux et globalement peu ensoleillé.(...)
Il se positionne parmi les hivers froids, mais non exceptionnels, de ces dernières années. Aussi froid que son prédécesseur, mais plus doux que l’hiver 2005-2006, il s’est cependant singularisé par la succession de trois vagues de froid bien marquées mi-décembre, début janvier et mi-février. Ces basses températures associées à un temps plutôt perturbé ont favorisé de fréquentes chutes de neige en plaine sur l’ensemble du pays. En terme d’occurrences de neige, l’hiver 2009-2010 se positionne ainsi comme l’un des plus neigeux de ces trente dernières années.»
France 1900-2009 Nord-Est. {sciences²} Image1 Quel climat a t-il fait en février 2010 ? Cette question a t-elle un sens ? Oui, si l'on ne regarde pas seulement la météo, c'est à dire le temps qu'il a fait, mais qu'on la compare aux moyennes climatiques. C'est ce que Météo France fait (comme tous les mois) pour l'hexagone, et c'est ce que l'équipe de James Hansen au Goddard Institute for Space Studies fait pour le monde. Voici les résultats. En France, février a été juste frisquet. Avec 0,9°C sous la moyenne (1971-2000). Mais nettement plus venteux que la moyenne (donc des températures ressenties plus froides), et si l'on ajoute à cela que janvier 2010 a été lui franchement froid (-2,4°C sous la moyenne, 7ème mois le plus froid depuis 1950), nous vivons un hiver rude. Voici le bulletin mensuel de Météo France pour février : «Les températures sont restées bien basses pour la saison durant une longue période ; puis, en fin de mois, elles ont amorcé une remontée significative.
Réchauffement climatique et conférence de Copenhague de décembre.