New York Times: As the Titanic found out, icebergs can cause a lot of destruction. But it isn’t just ships that can be damaged; close to the coast the seafloor can take a pounding as icebergs are moved around by currents, wind and tides. This “ice scour” occurs along coastlines at high latitudes in water up to about 1,600 feet deep, depending on iceberg size. It disturbs the ocean bottom just as a forest fire or flood disturbs the landscape. But scientists know much more about the ecological impact …