担心清洁。
然而，固碳依然是个有争议的问题，许多环保组织担心这会使发电厂在未得到清洁能源之前获得生产的许可。
Carbon sequestration remains a controversial issue, however, and many environmental groups worry that it could allow coal plants to earn approval ahead of cleaner energy technologies.
许多生活在“癌症村”的村民担心现在清洁为时已晚，但他们坚信，清洁能够拯救他们的子孙免于癌症。
Many in the "cancer village" fear the clean up is too late for them but they cling to hope that it will save their children and grandchildren from terminal illnesses.
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