Earth day events show how polluted rivers affect the ocean

SIOUX FALLS, S.D. - The Butterfly House and Aquarium partnered with Friends of the Big Sioux River to host another Earth Day event in Sioux Falls.

Saturday's events worked to provide educational activities to kids.

Many of them focused on how even people in the Midwest can keep oceans clean by making sure they take care of the rivers that run through their state.