  This contribution focuses on latest ALICE results on charmonium forward
production in proton-proton (pp), proton-lead (p-Pb) and lead-lead (Pb-Pb)
collisions at the TeV scale. In p-Pb and Pb-Pb collisions, measurements are
presented in the form of the charmonium nuclear modification factor (the
properly normalized ratio of its production cross section in heavy ion
collisions to its pp counterpart) as a function of the charmonium rapidity and
transverse momentum. These measurements are compared to available theoretical
calculations. Possible interpretations of these results in terms of gluon
saturation, initial and final state energy loss, color screening and
recombination are also discussed.
