Mining was found to be the most frequent cause of pollution in the dirty 30 but metals extraction, petrochemicals and other industries were also to blame.

报告发现，在30个污染最严重地区中，采矿业是污染最主要的原因，而金属冶炼、石化及其它工业也是污染的原因。

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Seafloor mining might therefore be less destructive than mining on land, which brings such not-exactly-benign consequences as mountaintop removal, mercury pollution, and destruction of watersheds.

因此，海底矿物开采比起在陆地上进行的开采，破坏性就小了许多。陆上开采可能造成诸如削平山头，水银污染和水域破坏的恶性后果。

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In the process, countries can help cut pollution linked with mining and manufacturing, and with the disposal of old devices.

在这个过程中，有利于各个国家减少与开矿和工业生产有关的污染，及处理旧设备。

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The pact is designed to place fishing rights, deep-sea mining, global pollution and more under the control of a new global bureaucracy, with disputes adjudicated by a new world court.

CENTERFORSECURITYPOLICY: Bottom-of-the-sea treaty

According to Peru's human rights agency, there are more than 200 disputes over natural resources in Peru, many of them involving access to water and allegations of pollution by mining companies.

BBC: Deadly clash at Peru protest over Barrick gold mine

Many mining experts have told me the toxic pollution from the mine will likely turn Mes Aynak into a site so toxic that in the future people will be advised against even setting foot on the ground.

CNN: Ancient site needs saving not destroying