1) CBC Television show 
[economics] In economics, the term sunspots (or sometimes `a sunspot`) usually refers to an extrinsic random variable, that is, a random variable that does not directly affect economic fundamentals (such as endowments, preferences, or technology). Sunspots can also refer to the related concept of extrinsic uncertainty, that is, economic unc...
Dark regions on the Sun which are the centers of large vortices and possess powerful magnetic fields. Maximum sunspot activity occurs in cycles with a period of about 11 years.
Cooler (and thus darker) regions on the sun where the magnetic field loops up out of the solar surface.
Storms on the Sun's surface which appear dark in comparison to the surrounding surface
dark spots on the Sun.
a dark area on the sun's surface that is cooler than the area around it