My presentation focuses on public trust in science, emphasizing that beyond the commitment of scientists as individuals, it is essential to have institutional support  and collective processes to build and sustain social confidence. I argue that scientists have a dual allegiance: as members of the borderless global scientific community and as situated actors within specific economic, cultural, social, and political contexts. These dual roles pose unique challenges in securing public trust.

      First, as participants in the universal "republic of science," scientists are called to uphold values that legitimize their practices from a public perspective—namely, social relevance and responsibility. By committing to these principles, science aligns itself with the principle

of justice, transforming its outputs into public goods.

      I then discuss the limits and opportunities faced by scientists as situated actors, especially in the Global South, where resource scarcity, political instability, and other factors complicate capacity building and effective public communication about the reliability of science.

      In conclusion, I contend that by reconciling their dual roles, scientists can better advance sustainable capacity building and improve public communication, helping the public understand and trust the unique contributions of scientific knowledge.