WBEZ brings you fact-based news and information. Sign up for our newsletters to stay up to date on the stories that matter.Chicago Mayor Rahm Emanuel is convening mayors from across the Great Lakes region on Wednesday. Emanuel called for the meeting after the Toledo water crisis. Back in August, residents in the Ohio city couldn’t drink the water because toxins had infiltrated the system. Experts say the same is not likely for Chicago, but algae blooms and Asian Carp could threaten the waters here. The meeting is held in collaboration with the Great Lakes and St. Lawrence Cities Initiative. Henry Henderson, Midwest Director of the Natural Resources Defense Council, joins us to talk about what topics may come up at the meeting.