Although conventional chemical degumming processes can remove most gum from bast fibers, they are usually time - and energy-consuming, high-cost and causing pollution to the environment.

目前常用化学脱胶工艺虽然可除去麻纤维中的绝大部分胶质，但脱胶时间长、耗能多、成本高，且污染环境。

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Or, worse than that, if the losses are accelerating because of us - by tearing up habitats or causing pollution or simply slaughtering every member of a species?

BBC: Why such a fuss about extinction?

The EPA last year issued the first-ever standards to control smog- and soot-forming gases from gas wells site, and updated existing rules to reduce cancer-causing pollution, such as benzene, from other equipment.

NPR: Report: Flaws In EPA Drilling Pollution Data

Some Shell pipelines that crisscross the delta are decades old and can fail, causing massive pollution.

NPR: Dutch Court Rejects Most Of Shell Spill Case