I found some type of loose-fill insulation stuffed behind standard fiberglass insulation while cleaning up my basement. The home was built in 1947 and I'm not sure if what I found is Asbestos (see image below).
If it is Asbestos what the heck should I do, leave it alone? cover it? put a mask on and get rid of it myself? I'm not the owner of the house and am just renting.