  The existence of global solutions is established for compressible
Navier-Stokes equations by taking into account the radiative and reactive
processes, when the heat conductivity $\kappa$
($\kappa_1(1+\theta^q)\leq\kappa\leq \kappa_2(1+\theta^q),q\geq 0$), where
$\theta$ is temperature. This improves the previous results by enlarging the
scope of $q$ including the constant heat conductivity.
