The precipitous drop in coal prices last year as the world economy swooned has delayed some projects.

而去年全球经济衰退造成的煤价暴跌延误了一些工程。

youdao

Local residents sometimes burn coal to keep warm when temperatures drop.

气温下降时，当地居民有时烧煤取暖。

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The drop in the amount absorbed is equivalent to 405m tonnes of carbon or around 60 times the annual output of Drax coal-fired power station, which is the largest in the UK.

未被吸收的数量相当于4.05亿吨二氧化碳，或者相当于英国最大的燃煤电厂德拉克斯大约60倍的年排放量。

youdao

German sources attribute a 400, 000-tonne drop in coal production in May 1943 to the damage caused.

BBC: The Dambusters raid: How effective was it?

The agency also suggested that high coal prices combined with a drop in natural gas prices saw nations replace coal with less polluting gas-powered electricity generation.

BBC: EU 'half way to 2020 emissions target'