The Role Of Natural Factors In Global Climate Change
Posted by
JAC on 6/25/2011, 8:56 pm
Interesting read. Some factors to consider other than what man has done to the environment.
http://geochange-report.org/index.php?option=com_content&view=article&id=92&Itemid=114
Conclusions
- The role of Earth's volcanic activity in global climate change is significantly higher than assumed.
- Increased degassing of the mantle during the periods of intensification of Earth's endogenous activity can be one of the main factors causing global temperature changes. This process occurs as a result of the following: growing number of volcanic eruptions; increased seismic activity and higher rate of gases entering the atmosphere through deep faults in the crust; deep gases penetrating into the world ocean and subsequently the atmosphere as a result of intensification of the spreading processes. All this ought to result in higher amount of greenhouse gases released from the mantle into the atmosphere. For instance, the volcanic activity index from 1850 to the present day has grown by 80-85% as compared to the background value. Therefore, it is logical to assume that the amount of volcanic gases emitted during volcanic eruptions has increased during this period by 80-85% as well.
- An important role in climate change is attributed to global changes in the parameters of the geomagnetic pole and magnetosphere; this refers in particular to the more than 500% increase in the north magnetic field's drift rate and reduction of the geomagnetic field intensity. Today, the impact of magnetospheric processes on Earth's climate is considered a proven scientific fact.
- Global climate change is also affected by solar activity, solar constant variations (flux of solar radiation) in particular, which is also a proven scientific fact. |
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