Sleepy sun awakening

Or so it has seemed since sunspots began returning back in December. Too late, apparently, to hinder the Arctic cold snap that put much of the northern hemisphere in the deep freeze until recently.

If, that is, you accept the cosmic ray theory of climate change. Many scientists don’t. Meanwhile the  sunwatchers among them also aren’t ready to declare the end of the solar minimum just yet. In the last few years, the sun has amply proved how little we know about its behavior.