St. Patrick's Day tradition: Why Chicago dyes its river green

St. Patrick’s Day is just around the corner, and Chicago is already celebrating Irish heritage in a big way. Did you know that about 40 pounds of green dye are dumped into the river each year? #scrippsnews #stpatricksday ------------------------------------- Scripps News is your source for news and analysis covering the top stories from around the world. With persistent curiosity and no agenda, we strive to fuel meaningful conversations by highlighting multiple sides of every story. It’s news with the why. Join our newsletter at http://bit.ly/2q1tepr See more at http://www.scrippsnews.com/ Like Scripps News on Facebook:   / scrippsnews   Follow us on Twitter:   / scrippsnews