University of Illinois: Certificate in science communication
"The Certificate in Science Communication is offered jointly by the 21st Century Scientists Working Group and the Center for Innovation in Teaching and Learning. It is designed for graduate students currently enrolled at the University of Illinois at Urbana-Champaign, but also open to postdocs. The certificate is designed to be completed in one year, but some applicants may take more or less time to complete the requirements."
University of Illinois at Urbana-Champaign