Global warming: a cool view

Abstract

The origins and operation of the Intergovernmental Panel on Climate Change (IPCC) and some aspects of the greenhouse gas theory of global warming are examined. It is concluded that while it is extremely unlikely that any accurate prediction can be made now of the climate a century hence, and there is doubt that emissions of CO 2 from man's activities are a major causative factor in global warming, government initiatives based on acceptance of the theory provide the spur for the steel industry to seek process routes with CO 2 emissions much lower than they are today.

Prereduction of self-reducing pellets of manganese ore

“…Another mechanism would be the reduction of iron oxide in the solid state and then further reduction of MnO in the slag by carbon (from the reductant or from carbon dissolved in the metal) followed by Fe-Mn alloy formation by dissolution of Mn into Fe, as proposed by Tarby and Philbrook 15 and confirmed by Pomfret and Grievson. 16 The rate of the reduction reaction of MnO contained in the slag by solid carbon is fast, whereas the metal-slag reaction is slow, and this is the controlling step of the process.…”

Natural gas based direct steelmaking using melt circulation: technoeconomic feasibility

“…There is undoubtedly much scope for debate on whether or not man's activities are a major influence on global warming, but as pointed out by Fitzgerald 1 government initiatives based on the greenhouse gas theory do provide the steel industry with the incentive to drastically reduce CO 2 emissions. With this in mind, it has recently been proposed by the present author 2 that a 'dash to gas' by the steel producers, as already in progress by the electric power sector, would reduce carbon emissions down to one-third of current levels and, even without carbon dioxide capture and storage (CCS), would provide CCS enabled steel plants for the longer term, if and when this becomes necessary.…”