The Great Lakes have been rising and falling cyclically over the centuries. This story for National Geographic concerned the fact that the largest fall in average water depth in history had occurred.
I was riding with a US Coast Guard icebreaker in January, when the ice covering is usually the thickest on the lakes. This year, the waters were pretty much ice-free coming into Cleveland, Ohio, as the bow-lights on the icebreaker illuminate open water. Photo 029