Scientists from Cardiff University have found that Britain's urban rivers are the cleanest they've been in over two decades.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/good-news-rivers-britain
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/environment-news-network-us
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rivers
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewage-pollution
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/freshwater-ecosystems
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/europe