  We study evolution of entanglement of two two-level atoms in the presence of
dissipation caused by spontaneous emission. We find explicit fromulas for the
amount of entanglement as a function of time, in the case of destruction of the
initial entanglement and possible creation of a transient entanglement between
atoms. We also discuss how spontaneous emission influences nonlocality of
states expressed by violation of Bell - CHSH inequality. It is shown that
evolving system very quickly becomes local, even if entanglement is still
present or produced.
