Anthropogenic global warming is likely to be amplified by positive feedback from the global carbon cycle; however, the magnitude of the climate sensitivity of the global carbon cycle, and thus of its positive feedback strength, is under debate.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/ensemble-reconstruction-constraints-global-carbon-cycle-sensitivity-climate
[2] http://admin.indiaenvironmentportal.org.in/category/author/david-c-frank
[3] http://admin.indiaenvironmentportal.org.in/category/author/jan-esper
[4] http://admin.indiaenvironmentportal.org.in/category/author/christoph-c-raible-et-al
[5] http://admin.indiaenvironmentportal.org.in/category/journal/nature
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-science
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming