Methanol demand is continuously increasing in the chemical and energy industries. It is commercially produced from
synthesis gas (CO + CO2+H2) using CuO/ZnO/Al2O3catalysts. Today, much effort is being put on the development of
technologies for its production from carbon dioxide (CO2). In this way, the Greenhouse effect may be mitigated. Over
the years, several useful works on CO2hydrogenation to methanol have been reported in the literature. In this article,
we present a comprehensive overview of all the recent studies published during the past decade. Various aspects
on this reaction system (such as thermodynamic considerations, innovations in catalysts, influences of reaction
variables, overall catalyst performance, reaction mechanism and kinetics, and recent technological advances) are
described in detail. The major challenges confronting methanol production from CO2are considered. By now, such
a discussion is still missing, and we intend to close this gap in this paper.