Nearly 200 doctors, nurses, faith and tribal leaders, social justice advocates and affected citizens traveled to Washington, D.C. for the 50 States United for Healthy Air events of 2011 and 2013:
Nearly 200 doctors, nurses, faith and tribal leaders, social justice advocates and affected citizens traveled to Washington, D.C. for the 50 States United for Healthy Air events of 2011 and 2013: