Sunspots

Sunspots are critical to long range Short Wave radio signal propagation. Since this is how most Ham Radio operators communicate, they are critical to me.

They may have other less significant effects, such as possibly driving extended periods of severe climate change called Ice Ages for periods of a few years to a few thousand years, but these are not nearly as important to me as the effect on HF propagation (I can always wear another coat, and living in Florida, I am at a good place to deal with global colding

Here are a few links on the subject.

• http://solarscience.msfc.nasa.gov/SunspotCycle.shtml
• http://www.dailygalaxy.com/my_weblog/2008/06/the-sunspot-mys.html
• http://science.nasa.gov/headlines/y2003/23oct_superstorm.htm