Climate change may be responsible for the abrupt collapse of a civilization on the fringes of the Tibetan Plateau around 2000 BC.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/climate-change-may-have-caused-abrupt-civilization-collapse-tibetan-plateau
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/science-world-report
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-impacts
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/history
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming