We discuss a novel explanation of the dark energy as a manifestation of
macroscopic non-locality coming from quantum gravity, as proposed by
Markopoulou. It has been previously suggested that in a transition from an
early quantum geometric phase of the universe to a low temperature phase
characterized by an emergent spacetime metric, locality might have been
"disordered". This means that there is a mismatch of micro-locality, as
determined by the microscopic quantum dynamics and macro-locality as determined
by the classical metric that governs the emergent low energy physics. In this
paper we discuss the consequences for cosmology by studying a simple extension
of the standard cosmological models with disordered locality. We show that the
consequences can include a naturally small vacuum energy.
