呈燎原之势的煤田火灾，覆盖着3000多英里长的地域，据统计，每年它会烧两千万吨的煤，比德国一年的总产量还要多。

Covering an area more than 3,000 miles long, China's northern coal fires are estimated to destroy as many as 20 million tons of coal per year, more than the entire annual production of Germany.

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呈燎原之势的煤田火灾，覆盖着3000多英里长的地域，据统计，每年它会烧两千万吨的煤，比德国一年的总产量还要多。

Covering an area more than 3, 000 miles long, China's northern coal fires are estimated to destroy as many as 20 million tons of coal per year, more than the entire annual production of Germany.

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在第二份研究中，经济学家按照地域对赋税统计数据。

In a second paper, the economists crunch their tax statistics by region.

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