Katie co-founded the Future Coalition in 2018, and served as the organization's Executive Director for the first four years of its operations.

[8] When she was 18 years old, Katie Eder co-founded Future Coalition, a network of youth-led organizations and youth activists across the United States.

Future Coalition works collaboratively to provide young people with the resources, tools, and support they need to create change in their communities.

Katie actively supported the US v. Juliana Case, the 19 young people who sued the US government for violating their rights by failing to act on Climate Change.

[21][22] Katie got her start in activism in the fourth grade when she organized a sit-in during gym class to protest boys and girls playing separately.