Monday, June 20, 2011

A thought... May the earth subsurface activities cause Climate change?


By Shahab Sabahi
Energy and Environment - Policy analysis research group

In recent decades, it seems that the annual number of earthquakes has been increasing and earth has blown up more magmas than before. It was coincidence that climate change, since the early 90s, also drew the attention of the international community as one of the challenges of the twenty first century. It does not mean that i try to work out a correlation between earthquakes and climate change. It may only lead to a question “May the earth underground activities heat up the earth surface and it consequently causes the atmosphere temperature rise? “

Maybe!!…However the statistics from the US geological survey centre read earthquakes of magnitude 7.0 or greater have remained fairly constant since the 90s. The number of volcano eruptions world-wide has remained constant for decades. So it plays down the the sentiment of the earthquake number increase. The sentiment may be because of the recent increase in the numbers of the earthquake probe stations and the tremendous improvements in global communications. They allow more locations are monitored and their statistics reach people easily.
However the centre admits that there are still the remote locations where are not observed. If it could be possible to monitor all critical points such as the beneath glaciers and the deep-bed in the poles and the seabed surface temperature of the Artic ocean, the data could be used to describe a pattern distribution for characterizing the earth activities. It may help to conduct a statistical study on the earth heat, energy and ash release

May the earth ash and super hot gas cause ice melting? What is going on under glaciers? So it is hard to say the earth subsurface activities may affect climate change. Also we cannot dismiss the effect of these activities which are inevitably capable bring the atmosphere temperature change.

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