
Episode #26
Chapter 3: You Are What You Emit
A dinner-table comment about beef burgers and carbon footprints sent me down a research rabbit hole — and it turns out food and agriculture account for roughly a quarter of global greenhouse gas emissions, more than every car, plane, and ship on the planet combined. This episode breaks down what John Doerr's Speed & Scale gets right about fixing the food system, where the peer-reviewed science pushes back, and the two changes that actually move the needle on your plate — no guilt trip required. Poore, Joseph, and Thomas Nemecek. "Reducing Food's Environmental Impacts through Producers and Consumers." Science , vol. 360, no. 6392, 2018, pp. 987–92. https://www.science.org/doi/10.1126/science.aaq0216 Ritchie, Hannah. "Sector by Sector: Where Do Global Greenhouse Gas Emissions Come From?" Our World in Data , 2020. https://ourworldindata.org/ghg-emissions-by-sector Ritchie, Hannah, et al. "Environmental Impacts of Food Production." Our World in Data , 2023. https://ourworldindata.org/environmental-impacts-of-food Clark, Michael A., et al. "Global Food System Emissions Could Preclude Achieving the 1.5° and 2°C Climate Change Targets." Science , vol. 370, no. 6517, 2020, pp. 705–08. https://www.science.org/doi/10.1126/science.aba7357 Gustavsson, Jenny, et al. Global Food Losses and Food Waste: Extent, Causes and Prevention. Food and Agriculture Organization of the United Nations, 2011. https://www.fao.org/newsroom/detail/Cutting-food-waste-to-feed-the-world/en United Nations Environment Programme. Food Waste Index Report 2021. UNEP, 2021. https://www.unep.org/resources/report/unep-food-waste-index-report-2021 United States Environmental Protection Agency. Estimating the Cost of Food Waste to American Consumers. EPA, Apr. 2025. https://www.epa.gov/system/files/documents/2025-04/costoffoodwastereport_508.pdf Bai, Xiongxiong, et al. "Responses of Soil Carbon Sequestration to Climate-Smart Agriculture Practices: A Meta-Analysis." Global Change Biology , vol. 25, no. 8, 2019, pp. 2591–606. https://doi.org/10.1111/gcb.14658 Food and Agriculture Organization Corporate Statistical Database (FAOSTAT), via Ritchie, Hannah, et al. "Per Capita Meat Consumption by Type." Our World in Data , 2024. https://ourworldindata.org/grapher/per-capita-meat-consumption-by-type-kilograms-per-year Willett, Walter, et al. "Food in the Anthropocene: The EAT–Lancet Commission on Healthy Diets from Sustainable Food Systems." The Lancet , vol. 393, no. 10170, 2019, pp. 447–92. https://doi.org/10.1016/S0140-6736(18)31788-4 Ranganathan, Janet, et al. Creating a Sustainable Food Future. World Resources Institute, 2019. https://www.wri.org/research/creating-sustainable-food-future Food and Agriculture Organization of the United Nations. "COP26: Agricultural Expansion Drives Almost 90 Percent of Global Deforestation." FAO Newsroom , 8 Nov. 2021. https://www.fao.org/newsroom/detail/cop26-agricultural-expansion-drives-almost-90-percent-of-global-deforestation/en World Resources Institute / Coolfood. Coolfood Pledge: Collective Member Progress Through 2023. Coolfood.org, 2023. https://coolfood.org/resources/coolfood-pledge-collective-member-progress-through-2023/

