The rest of the paper is organized as follows. We will first describe the methods used in our analysis including: the life-cycle food waste model; LCA standards, software and database used in the calculation of GHG emissions; the system boundary; important assumptions; and the how the economic impact is calculated. Following this, we will describe the food waste data used in this study, including a detailed summary of annual food production, consumption and waste in the US. We will then present detailed results for the climate change and economic impacts of US food waste, including a sensitivity analysis to test a critical subset of the assumptions used in this study. We will then close with concluding remarks and recommendations for further work on quantifying the full impacts of food waste.