Our water systems are currently being threatened by the crops we grow and food we produce. In many countries, agriculture is the leading source of nutrient pollution in waterways- a situation that's expected to worsen as the global population increases and the demand for food grows. With its partner Dr. Bob Diaz at the Virginia Institute of Marine Science, WRI's water quality team work evaluates the scale and scope of global nutrient-related water quality challenges, including how these issues are driven by agriculture.