Green not as in colour but eco-friendliness. One of the biggest environmental headaches is vinyl chloride. Chemical firms around the world are under pressure to tackle aquifer pollution from this
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/scientists-have-found-green-bug
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmental-science