The Sun has an eleven year sunspot cycle. A little over a decade. This cycle is due to reach a peak in 2013.

Sunspot Numbers

In 1610, shortly after viewing the sun with his new telescope, Galileo Galilei (or was it Thomas Harriot?) made the first European observations of Sunspots. Continuous daily observations were started at the Zurich Observatory in 1849 and earlier observations have been used to extend the records back to 1610. The sunspot number is calculated by first counting the number of sunspot groups and then the number of individual sunspots....

Considering we have all lived through cycles of the sunspots of the sun, it is safe to say we are used to it by now. I would not expect a civilized society such as our own would ever be completely unprepared for such emergencies as EMP. 

The Sun is predictable. It is something we can rely on. We don't have to worry about it as much as some seem to believe we do. 

A couple other things. Human Induced Global Warming is not caused by the Sun, it is caused by our own recklessness with the natural state of Earth. 

Other than that, we are expected to have a second Sun some day. Yes, it is predicted.

Below is an entry from Ingus at the blog section of "The Baltimore Sun."

That red star (click here) that marks Orion the hunters shoulder may explode in a type II supernova at any time.

Betelgeuse would become an intense white dot as bright as the full moon. It would not be safe to look at and it would turn the night sky blue.

It would not destroy our world but it could influence mutations and change the course of evolution.

Feb Astronomy

Now, I don't know about the mutant part. That one is a new one on me, but, Betelguese (Pronounced Bettle Juice) is considered close to Supernova and it will emit a different light. So, one day we may wake up and find a different pattern to Orion's shoulder and we'll know that Betelguese has breathed one of it's last breaths, so to speak.