  The interplay of nuclear effects on the p_T > 2 GeV inclusive hadron spectra
in d+Au and Au+Au reactions at root(s) = 17, 200, 5500 GeV is compared to
leading order perturbative QCD calculations for elementary p+p (p-bar+p)
collisions. The competition between nuclear shadowing, Cronin effect, and jet
energy loss due to medium-induced gluon radiation is predicted to lead to a
striking energy dependence of the nuclear suppression/enhancement pattern in
A+A reactions. We show that future d+Au data can used to disentangle the
initial and final state effects.
