moisture and mould on inside of windows

[Guest guest]

The inside of my windows are getting very wet, I don't understand

what's causing it since it's cold out and it's not humid indoors. It

must be condensation on the windows but I didn't used to get it at

other places I lived at. If it s condensation, there's an awful lot

of it. What can be done to eliminate or at least reduce this?

Elyse