The purpose of this CAST Issue Paper (IP 47) is to go beyond the generalizations and accusations often associated with the air quality topic. Experts from six universities examine a large amount of data and focus their information and conclusions around the key livestock areas: swine, poultry, dairy, and beef. Their critical analyses look at a wide scope of issues, from greenhouse gas emissions to the logistics of manure storage facilities.

Everyone is concerned with return on investment, and agricultural research continues to be an example of the positive impact well-placed funding can have. Agriculture is a key to the nation’s economy, and research not only boosts that industry, it also promotes solutions for many of the country’s pressing problems in the areas of health, energy, environment, rural development, trade, and food safety.