Electric vehicles in general are a great step in reducing emissions that cause global warming.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/electric-vehicle-greenness-varies-greatly-region
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/environment-news-network
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electric
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/zero-emissions-vehicles
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/california
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/new-york
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-transport
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicle-technology-and-fuel