The item that is NOT a goal aimed at reducing pollution is "Creating policies that limit the number of children families can have". The other three items are all aimed at reducing pollution. Modifying varieties of crops and planting dates can help reduce pollution by reducing the amount of pesticides and fertilizers used in agriculture¹. Controlling erosion so that soil doesn’t flow into waterways can help reduce water pollution¹. Monitoring and controlling disease-related pollutants can help reduce air pollution¹.