The growing of tea invariably replaces biodiversity-rich tropical forests with a beautiful, but single species (monoculture).
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/agarapatana-plantations-get-rainforest-alliance-certification
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-news-sri-lanka
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tea
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agro-based-industry
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biodiversity
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecosystems
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/flora
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fauna