> Cement releases CO2 as part of it's chemical curing process. It contributes to about 8% of worldwide emissions. There are 2 sources of CO2 during cement man

> Cement releases CO2 as part of it's chemical curing process. It contributes to about 8% of worldwide emissions. There are 2 sources of CO2 during cement manufacture. One is from the decomposition of lime, the other is from the energy production needed to make the process work. The latter could be avoided by electrical heating, a solar furnace or other renewable heat sources. The decomposition part can be compensated by newer cement chemistries that reabsorb most of the CO2 during the curing process. So there are alternatives, carbon capture is not the only solution.