The abandonment of Cantona, a once-fortified Mexican city, has been traced to a centuries-long period of droughts, resulting most probably from climate change.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/centuries-long-drought-climate-change-led-doom-mexican-city
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/international-business-times
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-disasters
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/droughts
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mexico
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-impacts
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/monsoons
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/aerosols