The campaign for eco-friendly Ganesha idols does not appear to have yielded the desired results.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/post-ganesha-idol-immersion-toxic-contents-rise-lakes
[2] http://admin.indiaenvironmentportal.org.in/category/author/poornima-nataraj
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-herald-bangalore
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ulsoor-0
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lake-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ganesh-chaturthi
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biological-oxygen-demand-bod
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution