منابع مشابه
Europe moves on carbon emissions
Faced with the latest predictions of the effects of climate change, the European Union has agreed to a fresh cut in carbon dioxide emissions of 20 per cent and to press for a global reduction of 30 per cent. Environment ministers dismissed calls to water down EU objectives and approved a binding set of new targets to be fulfilled by 2020, covering the period after the expiry of the Kyoto protoc...
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متن کاملBlack hole entropy: statistical mechanics agrees thermodynamics
We discuss the connection between different entropies introduced for black hole. It is demonstrated on the two-dimensional example that the (quantum) thermodynamical entropy of a hole coincides (including UV-finite terms) with its statisticalmechanical entropy calculated according to ’t Hooft and regularized by Pauli-Villars. PACS number(s): 04.60.+n, 12.25.+e, 97.60.Lf, 11.10.Gh ∗ e-mail: serg...
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متن کامل14ch4 Emissions from Nuclear Power Plants in Northwestern Europe
We measured the 14( content of atmospheric methane at a 200-m-high sampling station in The Netherlands. Combined with trajectories and a transport model, it is possible to estimate the 14CH4 emissions from nuclear power plants in northwestern Europe. We demonstrate here two different methods of analyzing the data: forward modeling and an inverse method. Our data suggest that the emissions from ...
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ژورنال
عنوان ژورنال: Nature
سال: 2008
ISSN: 0028-0836,1476-4687
DOI: 10.1038/456847a