This Earth Day, the chemical industry finds itself at a crossroads in an era of deregulation.

Growing up in Cleveland, Ohio, you learn early on all the things that put the city on the map. Two local cartoonists, Jerry Siegel and Joe Shuster, gave the world Superman. The city pioneered traffic safety with the world's first electric signal in 1914, forever changing how streets operate. The Rock and Roll Hall of Fame calls Cleveland home, as does the house from "A Christmas Story," where the warning "You'll shoot your eye out" is synonymous with Red Ryder BB guns. And yes, our river caught fire — more than once.