There is no other good way to keep the CO2 emitted by power stations, and also by processes such as iron - and cement-making, out of the atmosphere.
没有其他的好办法来保存发电厂、钢铁厂和水泥厂排放到大气层的二氧化碳。
2
By the industry's own admission, cement-making accounts for some 5% of the world's emissions of greenhouse gases-twice the amount attributed to aviation.
The system USES the heat from waste gases produced in the kiln during the cement-making process both to dry the cement and to heat water in a boiler that drives a turbine to produce electricity.