  We examine the effect on cosmological evolution of adding a string motivated
Gauss-Bonnet term to the traditional Einstein-Hilbert action for a (1 + 3) + d
dimensional Friedman-Robertson- Walker (FRW) metric. By assuming that the
additional dimensions compactify as the usual 3 spatial dimensions expand, we
find that the Gauss Bonnet terms give perturbative corrections to the FRW
equations. We find corrections that appear in the calculation of both the
Hubble constant, H0, and the acceleration parameter, q0, for a variety of cases
that are consistent with a dark energy equation of state.
