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Authorities are also trying to put a stop to high-polluting practices, such as brickmaking and the burning of rice straw, which is an old farming custom.

Children do every step of the brickmaking process.

Among the innovations of the new volume, Mr. Tauber said, is the use of infographics, charts, and timelines — along with hundreds of illustrations such as the recreation of an ancient Egyptian brickmaking mold — to convey information that would otherwise take pages to describe.

Children are doing every step of the brickmaking process.

They also paid for a brickmaking business with about 370 workers, an anti-malaria project and a series of gardens to preserve rare plants that were being destroyed by activity at the mine.