Get to know citizen science aficionado and Sierra Club leader Wietske Medema in this conversation with chapter chair Olga Bolotina. Wietske, a member of our Delta Group Executive Committee, has years of experience leveraging citizen science and popular technology to help advance environmental goals and engage communities with the environment. Her post-doctoral research at McGill University used these social learning tools to improve sustainable water management policies and practices in agricultural river basins and watersheds.   Originally aired May 15, 2020.   The weekly #InTheKnow series introduces you to the people behind the Club's policies and messages. What drives them, what keeps them up at night, and what can we learn from and about them that will inspire us in our own life and work? Join Chapter Chair Olga Bolotina on Facebook Live each Friday at noon for a new 'In the Know' interview with Sierra Club volunteers, staff, and other environmental leaders.