Milk composition responses amplify economic damages from heat stress (opens in new tab)

Studies analyzing the impact of climate change on agriculture mostly emphasize effects on production quantity, overlooking potential impacts on quality and nutritional content. We explore this question in the context of U.S. milk production, which represents about 20% of national animal-products. We link individual lactation records for over 6.5 million cows over 2007–2016 with high-resolution weather data to estimate the nonlinear effects of heat on both milk yield and composition (fat and p...