Well for one thing, your compost will stink. Also it will become really, really hot. Though, a hot compost with a 50:50 ratio of greens to browns that is turned daily will become extremely hot as well.
Try to ere on the side of caution, adding lots of browns (I like leaves much more than nespaper) as compost that stinks has gone anaerobic and then it is pretty much a losing battle. It can be ammended but, won't be nearly as bad as a true aerobic compost.
(Ammend with more browns and lots and lots of turning)