Famed Parisian landmarks such as the Eiffel Tower have been increasingly obscured in recent years by an oppressive smog.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/paris-smog-obscuring-eiffel-tower-threatens-diesel-car-dominance
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/bloomberg
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/european-union-eu
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/france