So What Creates Them?
The theories on what creates crop circles, if they are not manmade, are many and could make for another article. But some of the most common theories include whirlwind vortexes, plasma vortexes (the balls of light?), Earth energies, extraterrestrials, underground archaeology, sound vibrations, heavenly or demonic forces, and military experiments including microwaves.
If the anomalies listed above are real, a thorough, rigorously scientific examination of crop circles and their effects is called for to help unravel this mystery.