Using anthracite generates more carbon emissions than natural gas .
相对于天然气，使用无烟煤会产生更多的二氧化碳排放。
Detail of this higher grade of coal , anthracite .
上图是高等级别的煤，也就是无烟煤。
Geologists estimate the seams of anthracite and bituminous coal in northern china , for instance , were formed from the jurassic period onward .
地质学家估计中国北部的无烟煤和烟煤煤层形成于侏罗纪时期之前。
Yet , with potash still in the headlines , a separate takeover in china is revealing the possible agricultural importance of another substance : anthracite coal .
然而，在“钾肥”仍旧占据新闻标题之际，中国发起的另一场收购凸显出另一种物质对农业的重要性：无烟煤。
North korea sits right on its doorstep and reportedly has vast natural resources - coal and anthracite , timber , iron , gold and copper - that china hungers for .
