Main graph and smaller “Future trend” and “Causes for growth” graphs use data from ‘Global human appropriation of net primary production doubled in the 20th century’, Proceedings of the National Academy of Sciences of the United States of America, 2013. Accessed at http://www.pnas.org/content/110/25/10324.full.pdf

 

“Biomass changes” panel based on information from ‘Fossil Fuels and Human Destiny’, Peak Oil Barrel. Accessed at http://peakoilbarrel.com/fossil-fuels-human-destiny/ 

Deforestation figures by country are from ‘State of the World’s Forests’, Food and Agriculture Organization of the United Nations, 2012. Accessed at http://www.fao.org/docrep/016/i3010e/i3010e.pdf  

Lake Chad case study map is based on data in ‘Lake Chad - decrease in area 1963, 1973, 1987, 1997 and 2001’, Philippe Rekacewiz, UNEP/GRID-Arendal, 2005. Accessed at http://www.grida.no/graphicslib/detail/lake-chad-decrease-in-area-1963-1973-1987-1997-and-2001_9d8f

The “Land acquisition” graphics use information from Land Rush, Ian Johnson, Insights: Magazine of the International Food Policy Research Institute, October 26, 2012. Accessed at http://insights.ifpri.info/2012/10/land-rush/