Global Agricultural Productivity Index (IMAGE) Virginia Tech Caption The Global Agricultural Productivity Index tracks global progress toward the sustainable production of food, feed, fiber, and bioenergy for 10 billion people in 2050. Credit Virginia Tech Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.