Clamp kiln firing of clay bricks adding to greenhouse gas emissions

clamp kiln firing clay bricks greenhouse gas emissions brick manufacturing stacked air pollution brickyard brickworks smoking south africa emitting harmful gases global warming smoldering bricks construction material smouldering greenhouse gases construction industry fired clamp kiln smoke rising heap building material openair harmful claybricks emit brickwork industry production smoulder smolder heat industrial clay building block business build materials manufacturer stack masonry pollution