 Citizen science has been gaining momentum in recent years, with many projects successfully involving members of the public in scientific research. However, there are still barriers to participation in citizen science projects in non-western, non-educated, non-industrialized, non-rich and non-democratic contexts. This paper examines the experiences of 15 citizen science project coordinators in order to identify barriers and opportunities for engaging marginalized and indigenous communities in citizen science. The authors found that projects have employed various strategies to address these barriers, including decentralizing and using low-tech solutions, engaging in bottom up approaches and focusing on human rights. They also identified positive outcomes, such as increased community empowerment and improved access to information. Overall, the study suggests that citizen science can be a powerful tool for engaging marginalized and indigenous communities in scientific research, and that it may have more far-reaching benefits than just scientific advancement. This article was offered by Petra Begne, Artemis Scalatidou, Dimitris Aguio and others. We are article.tv, links in the description below.