We present a method for approximating the effective consequence of generic
quantum gravity corrections to the Wheeler-DeWitt equation. We show that in
many cases these corrections can produce departures from classical physics at
large scales and that this behaviour can be interpreted as additional matter
components. This opens up the possibility that dark energy (and possible dark
matter) could be large scale manifestations of quantum gravity corrections to
classical general relativity. As a specific example we examine the first order
corrections to the Wheeler-De Witt equation arising from loop quantum cosmology
in the absence of lattice refinement and show how the ultimate breakdown in
large scale physics occurs.Comment: 4 pages, 1 figure. Minor modifications to match version to appear in
Phys. Let.