Chart shows annual average greenhouse gas emissions from land use including livestock and crop production, but does not include fossil fuels used in agricultural production. Forests are a significant “sink” that absorbs carbon dioxide from the atmosphere. All values shown are for 2008, except wetlands, which are shown for 2003. (Pacala et al. 2007;385bda86-7b42-4264-9673-280ac0091528 USDA 20118e71f863-8c83-4786-900c-ad8c8c252b30).