Another known unknown – volcanic outgassing of CO2

It seems there’s really no complete measurements on how much CO2 is coming out of volcanoes, both active and inactive. From Livescience: Long Invisible, Research Shows Volcanic CO2 Levels Are Staggering (Op-Ed) … In 1992, it was thought that volcanic degassing released something like 100 million tons of CO2 each year. Around the turn of…

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1815, 1816 and 1817; A POLAR PUZZLE

An attempt to stimulate discussion about the causes of an unexpected event which occurred after the huge eruption of Tambora Volcano in 1815 Guest Essay by Caleb Shaw Volcanoes cause cooling, right?  No. Having got your attention, I would like to bring up three historical incidents, hoping I may generate some interesting explanations for something…

A link between climate, ice melt, and volcanic eruptions is found

When the ice melts, the Earth spews fire GEOMAR researchers discover a link between climate and volcanic eruptions It has long been known that volcanic activity can cause short-term variations in climate. Now, researchers at the GEOMAR Helmholtz Centre for Ocean Research Kiel (Germany), together with colleagues from Harvard University (Cambridge, Massachusetts, USA) have found…

The Neo Paleo Twitter war of Mann -vs- D’Arrigo

It seems that Columbia’s Rosanne D’Arrigo thinks Mann’s tree ring study isn’t representative proxies for volcanic eruptions, nor good for dendrochronology, though Mike Mann seems to think so. This Twitter interchange via Alexandra Witze from the AGU Chapman Conference on Volcanism and the Atmosphere in Selfoss, Iceland 10–15 June 2012 tells the story: And Witze…

Mercury fingered in Permian-Triassic extinction

Hmmm. This sounds a bit like a sales pitch against “dirty coal” in support of the recent EPA Mercury ruling instead of regular geological research. I question this research claim because they only have evidence that there were spikes of Mercury during those events, not that they caused or accelerated the extinctions. The PR states:…

Volcano found on the Moon’s farside

Non-mare silicic volcanism on the lunar farside at Compton–Belkovich Bradley L. Jolliff,Sandra A. Wiseman,Samuel J. Lawrence,Thanh N. Tran,Mark S. Robinson,Hiroyuki Sato,B. Ray Hawke,Frank Scholten,Jürgen Oberst,Harald Hiesinger, Carolyn H. van der Bogert,Benjamin T. Greenhagen,Timothy D. Glotch& David A. Paige Nature Geoscience (2011) doi:10.1038/ngeo1212 Abstract Non-basaltic volcanism is rare on the Moon. The best known examples occur…

Dramatic satellite images of the Ethiopian eruption

The MODIS/AQUA rapidfire website finally had a pass overhead online early this AM of the Ethiopian/Eritrean area volcanic eruption of Nabro, and I have them below. The plume stretches well over 1000 miles now. In the photo below, the Red Sea is prominent north of the volcano. The zoomed image below the “read more” line…