The British government has approved construction of a giant tunnel, at a cost of
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/giant-tunnel-save-thames-sewage
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution-control
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/thames
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sanitation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waste-disposal
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk