  We adopt up-to-date 7Li yields from asymptotic giant branch stars in order to
study the temporal evolution of this element in the solar neighbourhood.
Several lithium stellar sources are considered besides the AGBs: Type II
supernovae, novae, low-mass giants. Galactic cosmic ray nucleosynthesis is
taken into account as well. We conclude that AGB stars do not substantially
contribute to 7Li enrichment on a Galactic scale. Therefore, a significant 7Li
production from novae and low-mass stars is needed to explain the late, steep
rise of the 7Li abundance in disk stars and the meteoritic 7Li abundance.
