Federico Ceballos-Sierra (image) University of Illinois College of Agricultural, Consumer and Environmental Sciences Share Print E-Mail Caption Federico Ceballos-Sierra, University of Illinois, surveys coffee plants at his family farm in Colombia. He is lead author on a study estimating how climate change will impact Colombian coffee production. Credit College of AC ES, University of Illinois. Usage Restrictions None Share Print E-Mail 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.