Originally Posted By: sodak
Here's an interesting article for you.

http://www.scientificamerican.com/article.cfm?id=bracing-for-a-solar-superstorm



That is a very good article. I accidentally threw away that issue and ordered it again to have it.

For the solar storm issue, I do remember that the polarity (which is unknown until it hits) plays a major role. If I remember correctly, it was a negative polarity which can be devastating.