The relationship between livestock and climate change has been discussed for years.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/namibia-new-study-discusses-livestocks-contribution-climate-change
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/all-africa
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/livestock
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/namibia
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/methane
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/deforestation
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa