Article is from 2022 (at the moment the title doesn’t mention this). The river has been cleaned in 2000-2003[1], but a wikipedia photo[2] from 2010 shows foam

Article is from 2022 (at the moment the title doesn’t mention this). The river has been cleaned in 2000-2003[1], but a wikipedia photo[2] from 2010 shows foam buildup due to pollution. [1]: https://en.wikipedia.org/wiki/Kali_Bein https://en.wikipedia.org/wiki/Kali_Bein [2]: https://commons.wikimedia.org/wiki/File:Past_1.jpg https://commons.wikimedia.org/wiki/File:Past_1.jpg