Read about Light Detection and Ranging – LiDAR – a laser-mapping technique that is revolutionizing water planning and management in Minnesota. Read about zebra mussels in Lake Minnetonka, and read an interview with Louis J. Guillette Jr. about water pollution and birth defects. And read a column by Gene Merriam questioning the process by which we attempt to clean up polluted lakes and rivers, and another column by Dick Gray on the 12th Century Italian mathematician who first wrote about the “Fibonacci sequence.” These articles, and others, are in the September Facets of Freshwater newsletter. To read them all – either in PDF form or in a new electronic magazine format — click here.