The Environmental Protection Agency is relaxing certain emission standards for diesel cars in an effort to get more of these fuel-efficient -- but still relatively dirty -- vehicles on the road. The
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/epa-relax-diesel-regulations-encourage-fuel-efficiency
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/asian-wall-street-journal-hong-kong
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution