Our employees are a powerful resource for improving our environmental citizenship. In 2008, we formally began encouraging employees to suggest tips and ideas for improving our sustainability. So far, we have received more than 2,600 ideas, and more than 40 percent have led to changes in our programs and processes.
Union Pacific employees participated in 50 events in connection with Earth Day. We collaborated with elementary school leaders to create a lasting stewardship message through engaging and fun activities. In each of the last four years, volunteers have donated more than 3,000 hours to our Earth Day initiatives in communities across our system.