thanks Deb and the Galileos ... :) (some of you might remember that I argued that volcanic emitted CO² has a widely underestimated effect compared to human carbon emissions, especially when the volcanic activity is increasing, simultaneously with the tectonic events on their scale - which I label as an observable effect of accelerated platedrift, also evident by the polar anomalies ...) Large amounts of CO2 are transferred from Earth’s interior to the surface by volcanism. On a geological time scale, the rate of CO2 emission has controlled the evolution of Earth’s atmosphere and climate, as well as the dynamic processes that take place in the mantle and core. The total rate of natural CO2 emission from Earth has been estimated on the basis of CO2 flux from arc, mid-ocean-ridge, and hotspot volcanism. However, previous estimates have overlooked the CO2 emitted from a recently discovered type of volcanism—petit-spot volcanism—that occurs on the deep-sea floor
Posted on: Fri, 01 Nov 2013 15:55:13 +0000
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