  The phenomenon of turbulence is investigated in the context of globally
coupled maps. The local dynamics is given by the Chat\'e-Manneville minimal map
previously used in studies of spatiotemporal intermittency in locally coupled
map lattices. New features arise in the globally coupled system; for instance,
the transition to turbulence takes place discontinuously at some critical
values of the parameters of the system. The critical boundaries between
different regimes (laminar, turbulent and fully turbulent) of the system are
calculated on the parameter space. Windows of turbulence are present on some
ranges of the coupling parameter. The system also exhibits nontrivial
collective behavior. A map for the instantaneous fraction of turbulent elements
is proposed. This map describes many of the observed properties of the system.
