Siiri is student at Smith College studying Environmental Science and Policy with a concentration in Climate Change studies. Involved in national and international environmental activism, she has been a youth delegate at the United Nations Conference on Sustainable Development as well as the UN Climate Change negotiations in 2012. She is a leading organizer with Divest Smith College, a campaign to align Smith College's values with its endowment operations by divesting from the fossil fuel industry and pursuing sustainable investments. She is passionate about empowering students to engage in sustainability and institutional accountability.