Doug Marcy and Brandon Krumwiede of NOAA’s Office for Coastal Management present “Mapping and Visualizing Lake Level Changes for the U.S. Great Lakes” from noon to 1 p.m. today, May 19, in a free webinar hosted by Ohio State’s Climate Change Outreach Team. The focus: NOAA’s Lake Level Viewer, a planning tool for coastal communities. Get webinar details and register here.