Author John Manuel grew up canoeing the Chagrin, and he began his environmental career in the 1970s on the oozing Cuyahoga. As we mark another annual river day on The Sound of Ideas, Manuel joins us to talk about what rivers have taught him about life, family, and our world. Also, we'll check in on the condition of the Cuyahoga, both flowing into the Lake and through our local National Park. Join the conversation Monday morning at nine on 90.3.