  We discuss aspects of open and hidden charm production in deuterium-nucleus
collisions at RHIC and LHC energies. We describe calculations of the total $c
\bar c$ cross section and the charm quark transverse momentum distributions. We
next explain how shadowing and moderate nuclear absorption can explain the
PHENIX $J/\psi$ dAu/$pp$ ratios and predict the combined effect of shadowing
and absorption in 6.2 TeV d+Pb collisions.
