Continuous dumping of garbage in landfills will turn them into toxic emission site.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/landfills-may-emit-highly-toxic-gases
[2] http://admin.indiaenvironmentportal.org.in/category/author/prashanth-g-n
[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/bangalore-t
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/landfill
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/toxic-wastes
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/organic-waste
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmentalists
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waste-recycling
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solid-waste