Sunday, February 08, 2009

Reference: The WAIS is melting

Recently global warming scientists have renewed their old story with new vigor that carbon dioxide emissions from fossil fuels is causing the West Antarctic Ice Sheet to melt and that its complete melting will raise sea levels by seven meters unless we do something about greenhouse gas emissions (Maybe it's time to heed the warnings, Bangkok Post, February 8, 2009). These reports omit the effect of sub-glacial volcanic activity in a highly localized phenomenon that is absent from the bulk of Antarctica. A reference to the under-ice volcanic activity may be found at the Science Daily website at It includes the following statement: "The subglacial volcano has a 'volcanic explosion index' of around 3-4. Heat from the volcano creates melt-water that lubricates the base of the ice sheet and increases the flow towards the sea. Pine Island Glacier on the West Antarctic Ice Sheet is showing rapid change and BAS scientists are part of an international research effort to understand this change."

Cha-am Jamal

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