Nearly 16 years after Delhiās entire bus fleet started to run on CNG to reduce air pollution, authorities are now pitching for an even cleaner alternative, hydrogen-CNG (H-CNG).
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/cng-hydrogen-cng-why-switch-and-how
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cng
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-pollution-control-authority-epca
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse