  We consider the fate of future singularities in the effective dynamics of
loop quantum cosmology. Non-perturbative quantum geometric effects which lead
to $\rho^2$ modification of the Friedmann equation at high energies result in
generic resolution of singularities whenever energy density $\rho$ diverges at
future singularities of Friedmann dynamics. Such quantum effects lead to the
avoidance of a Big Rip, which is followed by a recollapsing universe stable
against perturbations. Resolution of sudden singularity, the case when pressure
diverges but energy density approaches a finite value depends on the ratio of
the latter to a critical energy density of the order of Planck. If the value of
this ratio is greater than unity, the universe escapes the sudden future
singularity and becomes oscillatory.

General Relativity and Quantum Cosmology;Astrophysics;High Energy Physics - Phenomenology;High Energy Physics - Theory