Gas is cheaper than coal.

煤气比煤便宜。

《柯林斯英汉双解大词典》

Nuclear power is cleaner than coal.

核能比煤更清洁。

《柯林斯英汉双解大词典》

youdao

the ax has enlarged the borders of our settlements, and the mines, as well of iron and coal as of the precious metals, have yielded even more abundantly than heretofore.

VOA: special.2009.11.23

Burning it releases fewer pollutants than oil or coal.

VOA: special.2009.10.23

It is also no secret that natural gas is a lot cleaner than coal.

FORBES: Buffett Won't Dig Deeper Into Coal, Should Be Like Boone And Go For Gas

It will be cheaper, more efficient and cleaner than coal - just one of many proposed improvements.

BBC: NEWS | Science/Nature | Russian firms turn Kyoto pioneers

Natural gas, which emits 45% less carbon dioxide than coal, would take up most of the slack.

FORBES: OutFront