Big Facts on Climate Change, Agriculture and Food Security

Food Emissions

Diets containing 1/3 animal products release up to 6.1kg CO2 per person per day via @cgiarclimate


Pradhan P, Reusser DE, Kropp JP. 2013. Embodied Greenhouse Gas Emissions in Diets. PLoS ONE 8(5), doi:10.1371/journal.pone.0062228. (Available from:

#DidYouKnow up to 14.5% of global GHG emissions come from livestock? #BigFacts via @cgiarclimate


Gerber PJ, Steinfeld H, Henderson B, Mottet A, Opio C, Dijkman J, Falcucci A & Tempio G. 2013. Tackling climate change through livestock – A global assessment of emissions and mitigation opportunities. Rome, Italy: Food and Agriculture Organization of the United Nations (FAO).

What a waste! 1/3 of food lost as it trickles through food supply chain #BigFacts via @cgiarclimate


[FAO] Food and Agriculture Organization of the United Nations. 2013b. Food wastage footprint. Impacts on natural resources. Summary Report. Rome, Italy: FAO (Available from

Rich countries waste almost as much food as sub-Saharan Africa produces #BigFacts via @cgiarclimate


Vermeulen et al., 2012

Our food system's emissions contribute up to 29% of total greenhouse gas (GHG) emissions #BigFacts via @cgiarclimate


[US-EPA] United States Environmental Protection Agency. 2011. Global anthropogenic non-CO2 greenhouse gas emissions: 1990 – 2030 EPA 430-D-11-003. (Draft.) Office of Atmospheric Programs, Climate Change Division. Washington, DC: U.S. Environmental Protection Agency. (Available from

Vermeulen SJ, Campbell BM, Ingram J SI. 2012. Climate change and food systems. Annual Review of Environmental Resources 37. (Available from

Food vs forests? Agriculture causes nearly 75% of global deforestation #BigFacts via @cgiarclimate


Blaser J, Robledo C. 2007. Analysis on the mitigation potential in the forestry sector. Report for the UNFCCC Secretariat. Bern: Intercooperation. (Available from

Tilman D, Balzer C, Hill J, Befort BL. 2011. Global food demand and the sustainable intensification of agriculture. PNAS 108(50):20260–20264. (Available from

US ethanol demand will require 10.8m new hectares of sugar cane & maize. #BigFacts via @cgiarclimate


Searchinger T, Heimlich R, Houghton RA, Dong F, Elobeid, A et al. 2008. Use of U.S. croplands for biofuels increases greenhouse gases through emissions from land-use change. Science 319:1238-1240. (Available from