Dejo artículo:
Volcanic Carbon Dioxide
Timothy Casey B.Sc. (Hons.)
Consulting Geologist
First Uploaded ISO:2009-Oct-25
http://carbon-budget.geologist-1011.net/El abstract
Abstract
A brief survey of the literature concerning volcanogenic carbon dioxide emission finds that estimates of subaerial emission totals fail to account for the diversity of volcanic emissions and are unprepared for individual outliers that dominate known volcanic emissions. Deepening the apparent mystery of total volcanogenic CO2 emission, there is no magic fingerprint with which to identify industrially produced CO2 as volcanic CO2 is isotopically identical. Molar ratios of O2 consumed to CO2 produced are, moreover, of little use due to the abundance of processes (eg. weathering, corrosion, etc) other than volcanic CO2 emission and fossil fuel consumption that are, to date, unquantified. Furthermore, the discovery of a surprising number of submarine volcanoes highlights the underestimation of global volcanism and provides a loose basis for an estimate that may partly explain ocean acidification and rising atmospheric carbon dioxide levels observed last century, as well as shedding much needed light on intensified polar spring melts. Based on this brief literature survey, we may conclude that volcanic CO2 emissions are much higher than previously estimated, and as volcanic CO2 is isotopically identical to industrially emitted CO2, we cannot glibly assume that the increase of atmospheric CO2 is exclusively anthropogenic.
La conclusión
6.0 Conclusion: Three Million Volcanoes "Can't be Wrong"
Irrespective that other authors may neglect to allow for volcanogenic CO2, volcanoes represent an enormous CO2 source that is mostly submarine. Furthermore, volcanic activity beneath both ice caps and localized to the regions of most intense melting has demonstrated an obvious cause of stronger Spring melts at the Poles.
It is evident from the observations of Sohn et al. (2008) & Reves-Sohn et al. (2008) that the Northwest Passage was opened up by powerful volcanic activity under the Arctic Ice along the Gakkel Ridge, while West Antarctic melting (as opposed to thickening of ice throughout the rest of Antarctica) can be explained by recent volcanic activity beneath the ice (Corr & Vaughan, 2008). Moreover, there are simply too many volcanoes to deny that the atmospheric concentration of the most erupted gas next to water is predominantly controlled by the balance or lack thereof between volcanic activity and photosynthesis. Furthermore, there is no fingerprint by which we may distinguish fossil fuel CO2 from volcanic CO2. This leaves us with no empirical method by which we may attribute the 20th century rise in CO2 to human energy consumption.
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