German: an der Wirkung von CO2 gemessenEnglish translation: expressed in terms of equivalent CO2 impact 
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| GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | | German term or phrase: | an der Wirkung von CO2 gemessen | | English translation: | expressed in terms of equivalent CO2 impact | | Entered by: | Christopher Hay |
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German to English translations [PRO]
Environment & Ecology / greenhouse effect | | German term or phrase: an der Wirkung von CO2 gemessen | Kohlendioxid stellt das mengenmäßig wichtigste klimawirksame Gas dar. Hiervon werden weltweit ca. 22 Mrd. t pro Jahr in die Atmosphäre emittiert (OECD Schätzung – Organisation for Economic Cooperation and Development). Zweitstärkster Verursacher des anthropogenen Treibhauseffektes stellt Methan mit geschätzten 347 Mio. t pro Jahr dar.
Das so genannte Treibhauspotential der verschiedenen Treibhausgase wird *an der Wirkung von CO2 gemessen*. Kohlendioxid wird mit 1 bewertet, Methan hat den Faktor 21, Distickstoffoxid hat den Faktor 310, wasserstoffhaltige Fluorkohlenwasserstoffe (HFKW) je nach Zusammensetzung 140 bis 11700 und der Faktor für perfluorierte Kohlenwasserstoffe (FKW) beträgt zwischen 6500 und 9200. Das Schädigungspotential von Schwefelhexafluorid (SF6) wird sogar mit 23900 bewertet.
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| | | expressed in terms of equivalent CO2 impact | Explanation:
"Comparative assessment of different energy options has to account for all greenhouse gases. … the following gases <are> generally included: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and carbon tetrafluoride (CF4). These gases have different effects on climate. This requires a conversion factor to convert them into common units. It is general practice to define CO2 as the reference gas and to use the global warming potential (GWP) of each gas as a conversion factor. Thus, results are expressed in g CO2 equivalents. … the IPCC report of 1994 … recommended GWP (per unit of weight, over 100 years) of 24.5 for CH4, 320 for N2O and 6300 for CF4."
[Gagnon, L. / van de Vate, J.: Greenhouse gas emissions from hydropower, in: Elsevier: Energy Policy 25/1 (1997), 7 ff.]
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| Selected response from:
Christopher Hay
Germany
| Note from asker to answererthanks
4 KudoZ points were awarded for this answer |
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5 mins confidence:   peer agreement (net): +4 |
| CO² equivalent
Explanation:
CO² equivalent
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Note added at 6 mins (2005-04-08 18:05:19 GMT)
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measured in units of CO2 equivalent
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Note added at 9 mins (2005-04-08 18:08:26 GMT)
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measured effect related to units of CO² emitted
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The translation workplace 
