Most of us know about the existence of waves and tides. We can see them along our coasts and, even if we do not pay much attention, we also know that waves and tides move sediment that rests on the seafloor: sand, mud, shells and…plastics. We all can see ripples and small channels on beaches or estuaries created by the movement of water from waves and tides. If we scuba dive down to a few tens of ...[Read More]