Adults and children of all ages can learn the importance of maintaining pollution-free rivers and streams in Ohio and elsewhere from a new interactive exhibit at the Center of Science and Industry (COSI) in Columbus. Project: Ripple Effect opened April 3 with a ribbon cutting by COSI President and CEO Frederic Bertley, Ph.D, and Mary Mertz, director of the Ohio DNR (ODNR). This content is restricted to subscribers of OutdoorNews.com.