Frenzied constructions ahead of the Commonwealth Games may be responsible for the Capital getting dimmer, smoggier, and unhealthier.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/heavy-construction-ahead-2010-games-making-delhi-dimmer-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/spm
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cng
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmospheric-brown-clouds
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/unep
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asia
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi