Dr. Julia Pongratz, postdoctoral research scientist at the Carnegie Institution Dept. of Global Ecology, discussing
J. Pongratz, K. Caldeira, C.H. Reick, and M. Claussen (2011) , Coupled climate-carbon simulations indicate minor global effects of wars and epidemics on atmospheric CO2 between AD 800 and 1850. The Holocene,
via Effects of wars and epidemics on historical atmospheric CO2 content: Dr. Julia Pongratz – YouTube.