Pine forests planted in Bulgaria to combat soil erosion are falling prey to a beetle that is feeding on trees already weakened by excessively hot weather, dense planting and a lack of proper loggin
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/bulgarias-pine-forests-threatened-bark-beetle
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/reuters
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pine
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bulgaria
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/soil-erosion
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming