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United Nations Framework Convention on Climate Change
The United Nations Climate Change Conference, Durban 2011, delivered a breakthrough on the international community's response to climate change. In the second largest meeting of its kind, the negotiations advanced, in a balanced fashion, the implementation of the Convention and the Kyoto Protocol, the Bali Action Plan , and the Cancun Agreements .
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We know that we didn’t see everything we wanted to, so if any other attendees are reading this, we encourage them to point out in the comments any particular highpoints they came across – especially if the talks were part of those broadcast, or if the poster is available on-line. Looking back at the whole meeting (20,000+ scientists, dozens of simultaneous sessions), it is perhaps worth noting the reasons why such meetings are so important.
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You have taken the first step towards attempting to communicate your expertise and thoughts to the wider world, which remains poorly served by its traditional sources of information when it comes to complex societally relevant issues like climate change. Your aim to clarify the science (or policy options or ethical considerations or simply to explain your views) is a noble endeavor and we wish you luck and wide readership.
As one might expect, he uses the Katrina disaster to underscore the point that climate change may have serious impacts on society, but he doesn’t highlight the connection any more than is appropriate (see our post on this, here ).
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Animal and plant species are already stressed by climate change.
Twenty years later: tipping points near on global warming | Envi
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Cela implique qu'il existe un grand nombre de bons modèles, capables de rendre compte des observations disponibles, alors même qu'ils reposent sur des hypothèses explicatives différentes et conduisent aussi à des prédictions différentes, voire opposées. Il s'agit là d'une situation dite "des modèles par les observations", cas particulier de "sous-détermination des théories par les faits", bien connue des chercheurs engagés dans la construction de modèles de systèmes complexes naturels, où le nombre de données ne peut pas être multiplié à l'envi par des expérimentations répétées et reproductibles. Conséquence : les modèles sur les changements climatiques ne peuvent être que des hypothèses, mises en formes informatiques très sophistiquées mais pleines d'incertitudes quant à leur relation à la réalité ; et il en va de même des prédictions qui en sont déduites '
thanks for it ...
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