Moth's everywhere

What does it means when you see moths? It is believed that your ancestors or belated one's are visiting you or miss you, something like that. So what does it actually mean when you see moths everywhere?

They are flying near the window, they are in the canteen, in the emergency exit staircase, outside on the building, on the sidewalks, at the main entrance, reception area, they are everywhere.

After reading [ this ], i think its because of global warming. Coz moths emerge from their cocoons during the first occurrence of hot humid weather. Its damn humid and hot these days when it should be raining at this time of the year. So its trying to tell us that our freaking planet is too polluted and global warming is getting worst and we should do our part to reduce the pollution.