University of Arizona: Certificate in science communication
"The Science Communication Graduate Certificate or multidisciplinary minor is available to all University of Arizona MS and PHD students and postdoctoral fellows. The goal of this program is to train future science professionals in the skills needed to communicate effectively. The certificate and minor require three electives to be taken at any time before graduation. Postdoctoral fellows can use the Qualified Tuition Reduction (QTR) benefit to take courses at a discounted rate."