The rings would also cause tremendous shadows throughout the days of winter making the days darker and colder at certain latitudes. With Earth’s current tilt of ~23 degrees this could be significant. Weather would be affected. Summertime nights would be much brighter from the reflected light. In wintertime the extra light reflected from the rings would be much less because it is the far side of the rings being illuminated. Cities within the shadow of the rings would be in them for weeks or months at a time.