This paper brings a review on the trends of arc plasma reactors, in the new millennium, as an alternative contribution to the reduction of carbon emission at global level. The development of technically and economically feasible plasma processes for the production of hydrogen is analyzed. Literature provides data on achievable intensification of the involved chemical processes comparing with those from the classic reactors. The hydrogen production is studied starting from hydrocarbons and alcohols by several methods as: cracking (TC), partial oxidation with oxygen (PO), steam reforming (SR), steam reforming with oxygen (SRO), CO2 reforming (CDR) and CO2 reforming with oxygen (CDRO). The automotive and aerospace applications are also taken into account.