CO2 emissions arising from industrial processes are substantial. In addition to the emissions associated with electricity generation, as discussed previously, processes such as cement and lime production also represent significant sources of anthropogenic CO2.
CO2 is produced in lime and cement manufacture as a result of the heating of limestone.
The final amount of CO2 produced varies depending on the type of cement being made. Globally, this source of emission is estimated to amount to 0.2 Pg C/year to the atmosphere.
It is hoped (as discussed by Reilly et al., Chapter 8, this volume) that future trading of 'carbon credits' and the likely increase in financial cost of greenhouse gas emissions to individual companies will lead to substantial cuts in CO2 emissions from industry through improved efficiency and greenhouse gas capture.
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