Paris Agreement targets by all countries will cost three or four times more if the target for temperature rise is kept below 1.5 degrees Celsius instead of 2 degrees Celsius
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/rising-heat-climate-change-tougher-target-greater-cost
[2] http://admin.indiaenvironmentportal.org.in/category/author/nitin-sethi-0
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cop-21-paris
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/droughts