Communicating the value of blue carbon ecosystems requires sound knowledge of biology, remote sensing, carbon assessment, policy, and approaches to restoration. We describe a successful training program where young professionals from developing countries are hosted in Australia and taught to communicate blue carbon science to researchers, policy makers, and the public. Across several programs, some run during the COVID-19 pandemic, participants increased their knowledge of important areas of blue carbon science by 58% to 74%. This integrative teaching platform gives participants the knowledge and skills needed to help solve the major challenges to the marine environment in their home countries.