Title: Poland Seeks to Contain Toxic Algae in the Oder River

The Polish Ministry of Climate announced on Sunday that it has "taken steps to prevent the spread of toxic golden algae in the tributaries of the Oder River and to avoid a recurrence of the pollution crisis that affected the waterway in 2022." The statement added that "authorities injected hydrogen peroxide at the confluence of the Gliwice Canal and the Klodnica River, which helped reduce the algae by at least 90 percent." The ministry reported that "around 77 tons of fish died in the affected part of the canal and in a nearby lake from August 3 until last Friday." It confirmed that "the use of hydrogen peroxide is a measure used during crises and not a systematic procedure." The main reason for the growth of this type of toxic algae is the saline waters discharged by mining plants into the river's tributaries. Poland is working on a plan to build desalination facilities.