And we also know what happens to a planet that receives more radiation (light) then the earth receives. Just look at Venus. The inverse square law states that it receives more light per surface area.
Yes, sunspot activity has been getting more frequent and powerful. I wonder whether warming oceans also lend to more frequent methane blowouts on the oceans' floors. Here's a site where anyone can get free notifications in advance of Auroras and information on increasing sun activity (even after the more intense part the cycle). ...took some photos of a great Aurora a couple of years ago, thanks to the newsletter.
Geomagnetic News - Auroral Activity
http://borealis2000.com/news.html