Great Lakes 'heading for trouble'

The Great Lakes are suffering from "massive ecosystem breakdowns" and are "heading for trouble" says wildlife expert Andy Buchsbaum.

http://www.nwitimes.com/news/local/laporte/michigan-city/great-lakes-heading-for-trouble/article_6b545d3b-860a-5e97-b13c-fd1fdc509b9b.html