1. Coal-burned heating to gas
By turning to gas, the heating plants produce virtually no fly ashes. The only emissions caused by the plants are carbon-dioxide and water.
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Northeast city of Changchun is the first city to start coal to gas conversion in its public heating services. By turning to gas, the plants produce virtually no fly ashes. The only emissions caused by the plants are carbon-dioxide and water. [Photo/Xinhua] |
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